Male With Klinefelter Syndrome

Male with Klinefelter syndrome

Klinefelter syndrome is a genetic condition that affects males. Klinefelter syndrome occurs when a boy is born with one or more extra X chromosomes. Most males have one Y and one X chromosome. Having extra X chromosomes can cause a male to have a variety of physical traits.

Many men with Klinefelter syndrome do not have obvious symptoms. Others have sparse body hair, enlarged breasts, and wide hips. In almost all men, the testicles remain small. In some men, the penis does not reach adult size.

ByHealthwise Staff
Primary Medical Reviewer John Pope, MD, MPH - Pediatrics
Martin J. Gabica, MD - Family Medicine
Stephen H. LaFranchi, MD - Pediatric Endocrinology
Kathleen Romito, MD - Family Medicine

Current as ofOctober 9, 2017

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