Overview
46,XX disorder of gonadal development, also known as 46,XX gonadal dysgenesis or XX female gonadal dysgenesis, is a rare condition in which a person has typical female chromosomes (46,XX) but their ovaries do not develop properly. Instead of normal, functioning ovaries, the gonads may be underdeveloped (streak gonads) or partially developed, meaning they cannot produce eggs or adequate amounts of female hormones like estrogen and progesterone. This condition falls under the broader category of disorders of sex development (DSD). The most common signs include delayed puberty, absent or irregular menstrual periods (primary amenorrhea), and infertility. Because the ovaries do not produce enough estrogen, affected individuals may also experience underdeveloped secondary sexual characteristics such as breast development and body hair. Some forms of this condition can be associated with other health issues depending on the underlying genetic cause, such as hearing loss (in Perrault syndrome) or adrenal problems. Treatment focuses on hormone replacement therapy (HRT) to induce puberty, maintain bone health, and support overall well-being. Estrogen and progesterone are typically prescribed to mimic the natural hormonal cycle. Fertility options are limited, but assisted reproductive technologies such as egg donation with in vitro fertilization (IVF) may be possible. Psychological support is also an important part of care, as the diagnosis can have emotional and social impacts. Early diagnosis and ongoing management by a team of specialists can greatly improve quality of life.
Key symptoms:
Delayed pubertyAbsent menstrual periods (primary amenorrhea)Underdeveloped breastsInfertilitySmall or streak ovariesLow estrogen levelsSparse body or pubic hairShort stature in some casesWeak or thin bones (osteoporosis) if untreatedPossible hearing loss (in certain genetic forms)Possible learning difficulties in some forms
Variable
Can be inherited in different ways depending on the underlying gene
Juvenile
Begins in the teen years
Treatments
No FDA-approved treatments are currently listed for 46,XX disorder of gonadal development.
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Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to 46,XX disorder of gonadal development.
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
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Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What is the specific genetic cause of my condition, and should my family members be tested?,When should hormone replacement therapy be started, and what can I expect?,How will this condition affect my bone health, and how often should I have bone density tests?,What are my options for having children in the future?,Are there any other health problems I should be screened for based on my specific diagnosis?,Can you refer me to a psychologist or counselor who has experience with disorders of sex development?,How long will I need to take hormone replacement therapy?
Common questions about 46,XX disorder of gonadal development
What is 46,XX disorder of gonadal development?
46,XX disorder of gonadal development, also known as 46,XX gonadal dysgenesis or XX female gonadal dysgenesis, is a rare condition in which a person has typical female chromosomes (46,XX) but their ovaries do not develop properly. Instead of normal, functioning ovaries, the gonads may be underdeveloped (streak gonads) or partially developed, meaning they cannot produce eggs or adequate amounts of female hormones like estrogen and progesterone. This condition falls under the broader category of disorders of sex development (DSD). The most common signs include delayed puberty, absent or irregul
At what age does 46,XX disorder of gonadal development typically begin?
Typical onset of 46,XX disorder of gonadal development is juvenile. Age of onset can vary across affected individuals.
Which specialists treat 46,XX disorder of gonadal development?
17 specialists and care centers treating 46,XX disorder of gonadal development are listed on UniteRare, sourced from ClinicalTrials.gov principal investigators, published research, and the NPPES NPI registry.