Klinefelter Syndrome

How likely will I have another child with Klinefelter syndrome?

Recurrence risk is low (<1%). However, risk has been shown to increase with increasing maternal age.

Klinefelter syndrome is a lifelong condition. Should you require financial assistance or emotional support, please approach your doctor for referral to a medical social worker.

Download the Klinefelter syndrome brochure.

References

1. 47, XXY (klinefelter syndrome) - symptoms, causes, treatment. National Organization for Rare Disorders. (2024, July 15). https://rarediseases.org/rare-diseases/47-xxy-klinefelter-syndrome/

2. About klinefelter syndrome. Genome.gov. (n.d.). https://www.genome.gov/Genetic-Disorders/Klinefelter-Syndrome

3. Osunkoya, A. O. (2023). Klinefelter syndrome. Uropathology, 460–461. https://doi.org/10.1016/b978-0-323-65395-4.00216-5

4. Ross, J. L. (Ed.). (2021, September). Klinefelter syndrome (for parents) | nemours kidshealth. KidsHealth. https://kidshealth.org/en/parents/klinefelter-syndrome.html