What is Klinefelter syndrome?

Klinefelter syndrome is a chromosomal condition in which males have an extra X chromosome affecting their sexual development. Males with this condition typically have small testes that do not produce enough testosterone.

How do members experience Klinefelter syndrome?

Top 5 symptoms reported by people with Klinefelter syndrome*

*Reports may be affected by other conditions and/or medication side effects. We ask about general symptoms (anxious mood, depressed mood, fatigue, pain, and stress) regardless of condition.

Top treatments taken by people for Klinefelter syndrome*

Who has Klinefelter syndrome on PatientsLikeMe?

Age

Age Proportion # of patients
<20 1
20s 7
30s 16
40s 19
50s 14
60s 16
70+ 0

Distribution of sex

Sex

Sex Proportion # of patients
Male 70
Female 2