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AXYS - The Association for X&Y Chromosome Variations

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Helpline: 1‑267‑338‑4262 | info@genetic.org

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A Parent’s Story

Alone No More

By Virginia Cover

In 1987, well before the Internet gave easy access to genetic information, my husband and I received a prenatal diagnosis of 47,XXY, or Klinefelter syndrome. We had excellent genetic counseling, and decided that if there were any issues, such as learning disability or speech delay, we could address it satisfactorily.

But there were challenges. Few medical or educational professionals were prepared to provide expert guidance to us, especially when our son was also diagnosed with an autism spectrum disorder. They all asked me if I knew of any link between 47,XXY and PDD-NOS (pervasive developmental disorder, not otherwise specified), which is a mild form of autism. Of course, I did not.

The few articles we had read mentioned nothing about autism. We added ASD to the challenges he had and that we dealt with on a daily basis. I have to say that we felt really alone at the time.

Our own families were very supportive of us but they also were puzzled by the lack of information about this surprisingly common genetic condition. If 1 in 600 boys and men were affected, why did we not know anyone else with an extra sex chromosome, and why did the professionals tell us that they really were not familiar with these genetic conditions?

Then one day my mother sent me a copy of a letter sent to Dear Abby. I wrote its author, Melissa Aylstock, and discovered Klinefelter Syndrome and Associates (which she had founded, later becoming AXYS). A year later, I attended my first conference, where I discovered other families with similar challenges. I especially enjoyed hearing from adults about how they had established themselves in careers despite contending with learning disabilities.

Our family also began attending New York area support groups. We discovered that our son John wasn’t alone in having a diagnosis of mild autism in addition to Klinefelter syndrome. Families traded names of doctors who had some specialized knowledge of Klinefelter’s and its impact on adolescents. We also exchanged information through the KSA listserve. Through the conferences and the newsletter, we learned about a brain imaging study at the National Institutes of Health. John participated in this study for eight years, and each time we went to Washington, we met additional families with whom to network.

Through the years, we found various professionals who took special interest in X and Y chromosome variations. They were able to help John progress through puberty fairly typically. He had teachers and psychologists who helped him graduate from high school with a Regents Diploma. But most of our emotional support came through the local support group and by attending family conferences.

I am glad that AXYS has become a valuable web-based resource for those affected by X and Y chromosome variations. The clinic consortium would have been so valuable to us during childhood and adolescence. Although it came into being after John was no longer a child and he already had a group of medical providers, I am glad it is there for all those who are newly diagnosed.

We now look forward to attending the family conferences every other year. My husband and I always go home with new knowledge and fresh perspectives. John is just happy to spend three days hanging around with other young adults who understand exactly what he has experienced in life. AXYS is the most important charity that we support annually.

John has progressed slowly but steadily as an adult. He had one false start in college but is now a sophomore, taking classes on a part-time basis. He has been able to work part time and is currently taking a vocational training program in computer maintenance and repair. John lives independently in a condo and has some support through New York State services for adults with developmental disabilities. We are grateful to all that AXYS and its community has helped us through over the years.

2023-08-23T12:11:13-04:00

Tell Your Child About the Diagnosis

Tell Your Child About the Diagnosis

We have gathered these resources to help you share the diagnosis involving extra X or Y chromosomes with your child. Please watch this webinar presented by Susan Howell MS, CGC, MBA – Disclosing the Diagnosis in X and Y Variations:

Our thanks to the eXtraordinarY Kids Clinic in Denver, one of the multidisciplinary clinics AXYS Clinic and Research Consortium (ACRC) for sharing these flyers – produced to help you share the diagnosis with your child.

Talking with your child about his diagnosis of Klinefelter syndrome

Talking with your child about her diagnosis of Triple X syndrome

Talking with your child about his diagnosis of XYY syndrome

You may wish to order and have on hand when you disclose the diagnosis one of these books on having extra X or Y chromosomes.

AXYS has created videos of ACRC members reading children’s books on X&Y variations. Watch the videos and order the books:  https://genetic.org/books/

How to tell your child about their XXY, XYY, or trisomy X diagnosis.

2024-08-22T14:51:30-04:00

I’m a medical professional seeking information

Looking for answers? We can help.

A doctor or other health care provider’s learning is never done. It is therefore no surprise, given the vast range of serious medical conditions affecting human beings, that many medical professionals are perhaps only vaguely familiar with X and Y chromosome variations. So we thank you for visiting this site, and we hope it will be helpful to you. We trust you will find here a useful initial storehouse of information and personal narratives that will assist your further investigation into these conditions.

The sampling of frequently asked questions below are complemented by an entire page of them that address many other aspects of sex chromosome aneuploidies. Just click here.

In addition, AXYS has developed a Clinic and Research Consortium with sites around the U.S., staffed by experts who are available for consultation on any matters pertaining to X and Y chromosome variations. Click here for a list of clinics and contact information.

Frequently Asked Questions

Variant karyotypes of 47,XYY, are probably not survivable in most cases.  There have been a few case reports of karyotypes such as 48,XYYY, or 49,XXYYY.  These individuals have had quite severe disability.
A mosaic cell line means that a man has one cell line with 46 chromosomes, for instance, including one X and one Y chromosome, as well as a second cell line with one X and two Y chromosomes.  This genetic signature would be written as 46,XY/47,XYY.  The term “mosaic” is used because the cells with different numbers of chromosomes “nest” together in a mosaic pattern, much like tiles on a floor or wall.
Approximately 80 percent of those with 47,XXY have the 47,XXY genetic signature.  In the other 20 percent, there may be more X and Y chromosomes, with genetic signatures of 48,XXXY, 48,XXYY, and 49,XXXXY. Or, individuals may have a mix of cells within the body, some XY and others XXY, which is called mosaicism. Some individuals have a genetic signature of 46,XX, but have a tiny piece of the Y chromosome appended to one of the X chromosomes, giving them male genitalia and secondary sex characteristics, such as facial hair and male muscle development.47,XYY is incorrectly associated as a variant of 47,XXY, but it is actually a distinctly different sex chromosome aneuploidy. The most obvious difference is that 47, XYY males have none of the medical and infertility issues that individuals with 47,XXY may have, although there can be behavioral difficulties and learning disabilities associated with XYY.
In girls and women with extra X chromosomes, about 10 percent will have 48 or 49 chromosomes. The variation with 48 chromosomes is called Tetrasomy X while the variation with 49 is called Pentasomy X. With each additional X chromosome, there is usually a decrease in IQ of about 15 points, as well as additional disability in various areas. Girls and women with Tetrasomy and Pentasomy X often have cardiac anomalies as well as genitourinary malformations or other birth defects. Unlike females with Trisomy X, many are infertile or fail to go through puberty normally and require estrogen treatment. Intellectual disability is not unusual in this population. It is also possible for a female to have only one X chromosome. This is known as Turner syndrome. It occurs at a rate of approximately 1 in 2000 to 2500 live births; only approximately 1% of fetuses with Turner syndrome survive to term. Most miscarry. Turner syndrome has a very different presentation from the trisomy sex chromosome aneuploid conditions. Girls and women with Turner syndrome usually have short stature and are infertile. They can have cardiac and other health problems.

Medical

Males with XXYY Syndrome are often diagnosed with other medical conditions or syndromes (or they may appear to have these conditions) before the XXYY diagnosis is made. These include:

  • Asperger Syndrome & Autism
  • ADD
  • Pervasive Developmental Disorder (PDD/NOS)
  • Sensory Integration Dysfunction
  • Hypotonia
  • Developmental Disability & Delay
  • Fragile X Syndrome
  • Epilepsy
  • Prader-Willi Syndrome
  • Speech Delays
  • Heart Problems
  • Hand tremors
  • Gynecomastia

Because many medical professionals have never had a patient with XXYY, it can be difficult to identify them.  We have published this document (link below) to help you to identify potential XXYY patients.  We created this booklet especially for outreach to Autism and ADHD groups and parents of children with those conditions because of the high rate of these two conditions in XXYY.

How to Identify XXYY

We also ask that you refer families to us.

Additionally, please note that older medical information on XXYY Syndrome is very limited and often out-dated. Males with XXYY are NOT necessarily violent. Such studies were conducted in prisons. Subjects did not have the benefit of correct diagnosis and treatment. Males with XXYY most likely DO need hormone replacement therapy. HRT does not make them aggressive. In fact, the opposite is true.

Mental Health

Mental Health professionals are in a unique position to assist in identifying males with XXYY Syndrome. If you see a patient with the following characteristics, coupled with other medical and learning problems or characteristics listed on this site, please refer him to his primary care physician and ask for genetic testing:

  • Moodiness
  • Bi-Polar disorder
  • Frustration
  • Outbursts
  • Difficulties in social situations
  • Extraordinary imagination
  • Difficulty telling the truth

Males with XXYY Syndrome often have unusual reactions to medications. Parents have found that ADD medications used at high doses can positively change behavior along with helping with attentional problems. Other medications for mood stabilization, etc., can seem to work for a while but then make matters worse. We encourage parents to keep written logs of changes in behavior of any kind after beginning medication treatments.

Dental

Males with XXYY Syndrome have unique and very prominent dental problems. Look for:

  • Taurodontism
  • Missing adult teeth
  • Poor enamel
  • Poor dental hygiene

Education

Teachers are an extremely important piece of the XXYY puzzle. Males with XXYY are visual learners. They often hide in small places (under the desk, for example) because of sensory overload. Because of hand tremors, they may have significant difficulties with writing. Behavior outbursts may also happen.
The XXYY Project will be working on developing Individual Education Plans in the future. If you are a special education teacher and would like to contribute to the project, please contact us.

Speech, Physical and Occupational Therapists

Therapists, especially speech therapists, are often the first to see a male with XXYY Syndrome since speech delay is one of the first symptoms to become apparant. Some parents have found the use of sign language when a child is young seems to reduce frustration considerably. Because of low muscle tone, males with XXYY Syndrome need strengthening exercises for all muscles. A plan that includes all three therapies is the best possible assistance that can be given to a male with XXYY Syndrome at an early age. Occupational therapy is very valuable and if it can be done in conjunction with some training for the classroom teacher, it is most beneficial.

Brenda’s Story

“One thing I am rapidly learning is how much contradictory information there is about X and Y chromosome variations in the medical community. Interestingly, my baby has no developmental delays yet but he has more physical characteristics than most of the babies I have seen on the AXYS website. Clenched fists, deformed ear lobes… slanted eyes…one drooped eyelid…But he is a little ball of personality!”

Brenda

Resources

Professionals who specialize in XXY, XYY, Trisomy X, and XXYY

Research and clinical trials for those with XXY, XYY, Trisomy X, and XXYY.

Clinics for individuals with XXY, XYY, Trisomy X, and XXYY

Support groups for individuals with XXY, XYY, Trisomy X, and XXYY

Latest News and Research

For a library of past news items, click here.

2023-09-05T16:37:32-04:00

I’m pregnant and have genetics questions

Looking for answers? We can help.

Medical care during pregnancy often includes screening for genetic conditions. We take special care at AXYS to provide scientific information and unbiased support. We hope you will find the resources and links on these pages helpful, while also feeling free to contact us directly for additional assistance.

If you had a genetic test that indicates one of the following conditions, click the link for more information.

47,XXY
47,XYY
47,XXX
48,XXYY
Other Variations

Frequently Asked Questions

It depends on the test. A non-invasive prenatal blood test can suggest only that your fetus is at risk, but is not a diagnosis. But two other invasive tests—amniocentesis and chorionic villus sampling (CVS), serve as a definitive diagnosis. Click here for more information on prenatal testing.

Genetic counselors receive a great deal of training on various genetic conditions and can be of tremendous assistance when discussing the implications of various tests. They can be particularly valuable after you’ve had a blood test indicating your fetus may be at risk for a genetic condition. AXYS maintains a list of qualified genetic counselors across the country, and can assist you in making contact with them.

Generally, children born with an extra X or Y chromosome do not have any obvious physical differences, which is why so few children are diagnosed soon after birth. In children with two or more extra X or Y chromosomes, there may be more pronounced physical signs. Consult the links above for the specific condition of your child for more information.

These conditions are common enough that they need not be revealed as something disturbing. Every person is different, and an X or Y variation is just one more way human beings are shown to be unique. However, before disclosing a diagnosis to relatives such as grandparents, siblings and others, it may pay to be patient. You may wish to consult with a genetic counselor or trusted, informed advisor about what to say and when to say it. It is reasonable to wait with a prenatal diagnosis until your child shows some symptoms associated with the condition, such as developmental delay or learning difficulty. It is well-known that such delays vary greatly with the different conditions and among different individuals. For a more extensive discussion on this matter extending further into your child’s life, scroll to the bottom of this site’s Frequently Asked Questions page.

Candace’s Story

“My little guy is 3 and has been a beautiful addition to our family. He has the sweetest most loving personality. He seems to be progressing well in all areas, with the exception of expressive speech, which is very delayed. I think with the right therapies in place and a willingness to learn, parents need not fear an extra X or Y chromosome diagnosis. It’s all in what you make of it.”

Candace

Resources

Professionals who specialize in XXY, XYY, Trisomy X, and XXYY

Research and clinical trials for those with XXY, XYY, Trisomy X, and XXYY.

Clinics for individuals with XXY, XYY, Trisomy X, and XXYY

Support groups for individuals with XXY, XYY, Trisomy X, and XXYY

Latest News and Research

For a library of past news items, click here.

2023-09-05T16:31:17-04:00

I’m an adult new to these conditions

Looking for answers? We can help.

Unlike many conditions that have obvious, defined symptoms well-known to physicians and the general population, X and Y chromosome variations often affect people only subtly, with mild and mysterious symptoms that are often dismissed as normal developmental variations or individual quirks. This can delay diagnosis for years, much to the frustration of those who experience them.

Being diagnosed with a genetic condition as an adult can be a highly distressing experience. But for many people, it can also come as a profound relief. Finally, they have an answer to the questions that have simmered in their lives about feeling different, with challenges that did not seem to affect other family members or their peers.

At AXYS, we also know that a diagnosis can act as a springboard to new knowledge, new perspective, and a new resolve for you to finally obtain the support you need to make the most of your life. Whether you were diagnosed just recently or years ago and are still sorting out the implications, you can always expand your knowledge base and arm yourself with new tools and approaches to addressing your condition. Over the years, we have seen countless people find their way forward and accomplish more than they thought was possible before their diagnosis.

Toward that end, the entire AXYS community stands ready to assist you in all the ways described in this website. Whether you gain knowledge from what you read here, the conversations taking place at clinics and conferences or daily on our Facebook page, or via  support from our Helpline (1‑267‑338‑4262), you can rest assured that others are available and supportive of your desire to lead a productive and rewarding life.

Frequently Asked Questions

The different conditions occur at varying rates in the population. 47,XXY occurs in approximately 1 in 600 males, 47,XYY in 1 in 1,000 males. 47,XXX (Trisomy X) occurs in approximately 1 in 1,000 females. 48,XXYY is comparatively rare at approximately 1 in 18,000-40,000 males.

Although most people born with  X and Y variations exhibit some degree of cognitive impairment, severity can vary quite widely among the different conditions and even among different people with the same condition. Speech delay, low muscle tone and poor coordination, learning disabilities, and tall stature are other common symptoms, as are psychological challenges of anxiety, depression, attention deficits and social immaturity. Only rarely do individuals exhibit a great number of these symptoms, and indeed, the fact that many exhibit only a few, with limited severity, is why so many people with an X or Y variation remain undiagnosed for much of their lives.

Approximately 75% go undiagnosed their entire lives. This reflects the fact that the presenting symptoms of the conditions are often easily passed off as part of normal human variation, despite the considerable educational and social challenges they may present to affected individuals and their families.

No. The extra chromosomes in these conditions result from an error in cell division when an egg or sperm is formed, or after fertilization. Males have one X chromosome and females have two, so both the mother and father can contribute an extra X. Since females lack any Y chromosomes, only males can contribute an extra Y to their child. In 48,XXYY, the error in cell division occurs when the sperm is formed.  The father contributes the extra X and Y chromosomes, in all cases.

Susan’s Story

“I always struggled in school, especially in reading. But a lot of kids were in the same boat so I didn’t stand out too much. I made it through high school and even some college before I got a job. But social life was never easy for me and I carried a lot of self-esteem issues into adulthood. Finally, my doctor suggested the possibility of testing to rule out any organic causes, and I was amazed to find out I have Trisomy X. It was more a feeling of relief than anything else. A lot of puzzle pieces fell into place that day.”

Susan

Resources

Professionals who specialize in XXY, XYY, Trisomy X, and XXYY

Research and clinical trials for those with XXY, XYY, Trisomy X, and XXYY.

Clinics for individuals with XXY, XYY, Trisomy X, and XXYY

Support groups for individuals with XXY, XYY, Trisomy X, and XXYY

Latest News & Research

2023-09-05T16:18:55-04:00

I’m a parent of a diagnosed child

Looking for answers? We can help.

Finding out that your child has a genetic condition can be extremely challenging for parents. It may leave you wondering whether you will have to reassess everything you had planned and hoped for regarding your child’s and family’s future. But life does not stop with the discovery of an extra X or Y chromosome, nor will your child stop growing. Life will be different, but not without many of the same joys and challenges that all parents feel in their children’s lives.

Here you will find many resources to help you better understand your child and get the support you need to help guide them to maturity and their fullest potential.

Frequently Asked Questions

The questions below serve as a general preview for the more extensive list of Frequently Asked Questions on X and Y chromosome variations, grouped by condition, that is available here.

47,XXY, also commonly referred to as Klinefelter syndrome, is estimated to occur in 1 out of 600 males, making it the most common chromosomal disorder.  Rather than the usual pattern of 46 chromosomes, with one X chromosome and one Y chromosome, there is an additional X chromosome, resulting in a genetic signature of 47,XXY.  This happens when paired chromosomes fail to separate at the first or second stage of meiosis.  The exact cause is unknown.  The extra chromosome can come from either parent; there is little relation to either maternal or paternal age.  An extra chromosome in a pair (ie the X and Y chromosomes) is called a trisomy.  47,XXY, unlike most trisomy conditions, is highly survivable for the fetus and causes symptoms that vary greatly from one person to another.    An extra or missing sex chromosome yields a syndrome called sex chromosome aneuploidy.  A syndrome is a collection of symptoms and physical signs.  In some individuals, the manifestations of 47,XXY are mild and barely noticeable while in others, there is more severe symptomatology.

Booklet: For EXtra Special BoYs – A Guide to 47,XXY, Klinefelter Syndrome

Rather than having the usual male pattern of 46 chromosomes with one X chromosome from the mother’s egg and one Y chromosome from the father’s sperm, individuals with 47,XYY are born with an additional Y chromosome. This results in the genetic signature of 47,XYY, which occurs in approximately 1 in every 1,000 males.

47,XYY results from an error in cell division when an egg or sperm is formed in a parent, or after fertilization, when the cells divide in the embryo. That means it, like other X and Y conditions, is not inherited, though the exact cause of the cell division errors is unknown.

An extra chromosome in a pair (i.e. the X and Y chromosomes) is called a trisomy. 47,XYY and the other trisomy sex chromosome conditions (47,XXY and Trisomy X), are highly survivable for the fetus, rarely cause severe disability, and can have symptoms that vary greatly from one person to another. In some males, the manifestations of 47,XYY are mild and barely noticeable while in others there are much more severe symptoms.

Booklet: For EXtraordinarY BoYs – A Guide to 47,XYY

Trisomy X, also known as 47,XXX, is estimated to occur in 1 out of 1000 females. Rather than the usual female pattern of 46 chromosomes with two X chromosomes, there is an additional X chromosome, resulting in a genetic signature of 47,XXX. This happens when paired chromosomes fail to separate during meiosis, creating either an egg or a sperm with an extra X chromosome, or after fertilization during mitosis, when the cells divide in the embryo. The exact cause is unknown. The extra chromosome can come from either the egg or the sperm although in Trisomy X, it is more likely to be contributed by the egg. An extra chromosome in a pair (i.e. the X and Y chromosomes) is called a trisomy. There is some relationship to advanced maternal age, although it is not nearly as strong as in Down syndrome, which is also a trisomy condition involving chromosome 21. Unlike most trisomy conditions, Trisomy X and the other trisomy sex chromosome aneuploid conditions (47,XXY and 47,XYY) are highly survivable for the fetus and cause symptoms that vary greatly from one person to another. An extra or missing sex chromosome yields a syndrome called sex chromosome aneuploidy. A syndrome is a collection of symptoms and physical signs. In some females, the manifestations of 47,XXX, are mild and barely noticeable while in others, there are much more severe symptoms.

Booklet: For EXtra Special Girls – A Guide to Trisomy X (47,XXX)

Before disclosing a diagnosis to relatives, such as grandparents, determine whether they are likely to be supportive and tolerant of a range of learning disabilities and other possible health and behavior problems. It is reasonable to wait with a prenatal diagnosis until your child demonstrates some developmental delay, and an explanation to grandparents or to siblings becomes necessary.

A significant factor in disclosure is the need for social benefits and supports. Most accommodations of any type have their basis in the American’ with Disabilities Act (ADA). The XXY individual may not be disabled and yet still qualify for services and accommodations. For example, a person with XXY may benefit from the protections and supports afforded by an IEP or 504 plan in school. In the case of a child with language, physical, learning or behavioral difficulties, disclosing the chromosomal condition to relatives is often reasonable and reassuring to them. It is important to know as much information as possible so that you can address concerns, particularly where the relative has heard one of the myths about 47,XXY. Some of these myths suggest that 47,XXY causes intellectual and developmental disabilities (previously called mental retardation), increased criminal behavior, or that individuals with 47,XXY are actually women.

It is important to emphasize that most XXYs have IQs between 85 and 120, although some individuals with more than two additional chromosomes may have intellectual and developmental disabilities. In addition, XXYs as a group actually have lower than expected rates of criminal convictions, when compared with the general population of males. And, while respecting those XXYs who identify as a different gender, the presence of a Y chromosome almost always determines that a human develops as a male, although there are some syndromes (not related to 47,XXY) in which a human with a Y chromosome may develop as a female, rather than as a male. A minority of XXYs identify as another gender or intersex.

Disclosure to an employer is rarely necessary unless the employee is seeking employment through a supported work program or is seeking some other special accommodations under the ADA. Genetic information should remain private because disclosing such information may make obtaining health or life insurance difficult. Employers or others may make unjustified assumptions that certain myths (cited above) are true for persons with 47,XXY. In some cases, however, disclosure may be necessary in order to obtain federally-mandated Family and Medical Leave, or some other benefit such as disability coverage or an accommodation under the ADA.

Disclosure to schools is necessary only if your child demonstrates significant learning or behavior problems that require special education classification, such as an IEP or Section 504 accommodation. Schools will often be unaware of the condition, and staff will need to be educated about XXY, usually by the parent. Taking a selection of website printouts explaining the condition and its impact on learning can be very helpful. Some parents have found that special education services are more likely to be appropriate when the pediatrician provides a diagnosis under the classification of “other health impaired” such as Pervasive Developmental Disorder-NOS (PDD), rather than 47,XXY. Schools understand autistic-like behavioral and language difficulties when they occur in high-functioning children, and many schools have programs in place to address these problems. In addition, these programs are mandated in many states for children with autism spectrum disorders, of which PDD is one. The schools may not realize that XXY children often have the same deficits and are also eligible for these services.

To access these accommodations, parents are well advised to learn the glossary of key terminology that helps make the case to qualify their child student for these supports. It also may be helpful to recruit local disabilities advocates, such as the ARC, to assist with the qualification process.

Individuals with 47,XXY fall in love just as other human beings do, so they should divulge their condition at the appropriate time in a developing relationship. If and as any given relationship advances past the casual dating phase, disclosure—along with thorough education about the condition—may well become advisable. Support groups and list-serves can be very helpful in introducing new couples to others who have been through building a relationship and a family.

Alan’s Story

“My son was diagnosed at 18 months. He is now 8. We take him to a speech therapist once a fortnight and he has a tutor for school. Although he has a modified IEP (individual education plan), he is doing OK at school. His strengths seem to be with people. He makes friends easily and quickly. He really knows how to have fun and is known for having a good time.”

Alan

Resources

Professionals who specialize in XXY, XYY, Trisomy X, and XXYY

Research and clinical trials for those with XXY, XYY, Trisomy X, and XXYY.

Clinics for individuals with XXY, XYY, Trisomy X, and XXYY

Support groups for individuals with XXY, XYY, Trisomy X, and XXYY

Latest News & Research

2023-09-05T16:18:13-04:00

Volunteer

Volunteer Opportunities

AXYS exists through the dedication and commitment of those who support it in any and all the ways they can. In some cases, that support is financial; in others, it involves direct volunteer service. Volunteer opportunities are varied and may include:

  • Participating in AXYS committees including fundraising, program, support groups, finance and governance, and research
  • Helping to answer or serving as a resource volunteer for the Helpline
  • Posting accurate information on Facebook pages and other social media, and helping to monitor postings on AXYS’ own social media

· Serving as a volunteer resource with expertise in marketing, health care, mental health, communications (including newsletters and publications,) criminal justice and other legal matters

To get started with volunteering, please complete this online form.

All volunteers will be asked to complete a Volunteer Confidentiality Agreement.

2025-02-28T13:51:32-05:00

Prior Conferences

Every two years, AXYS sponsors a conference that brings together those with an extra X or Y chromosome variation, their parents or other family members, researchers, medical professionals and others. The conference features individual presentations, panel discussions, and plentiful opportunity for informal discussion and support on a wide range of matters relevant to our members and friends. Much of the material is of a timeless nature that can be highly informative and helpful to those new to the field.

2023 AXYS Virtual Family Conference

2021 AXYS Virtual Family Conference

2019 AXYS Family Conference, Atlanta, Georgia

2017 AXYS Family Conference, Aurora, Colorado

2015 AXYS Family Conference, Baltimore, Maryland

2013 AXYS Family Conference, Denver, Colorado

2024-07-19T15:40:03-04:00

Finances

Finances

As a small nonprofit 501(c)(3) organization, AXYS relies primarily on the generosity of donors who provide the necessary financial support and volunteers who help with the countless tasks needing attention on a daily basis. Our finances are always open for inspection. Below are links to relevant documents that detail our financial activity over the years.

View our Guidestar profile for more information.

IRS Tax Returns

2024 990

2023 990

2022 990

2021 990

2020 990

2019 990

2018 990-EZ

2017 990

2016 990-EZ

2015 990

2014 990-EZ and FASB Functional Categories Detail

2013 990-EZ and FASB Functional Categories Detail

2012 990-EZ 

2011 990-EZ

2010 990-EZ

2009 990-EZ

2008 990-EZ

2007 990-EZ

2025-04-01T10:20:04-04:00
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