Klinefelter syndrome
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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.
Common symptoms reported by people with Klinefelter syndrome
Treatments taken by people for Klinefelter syndrome
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Compare treatments taken by people with Klinefelter syndrome
Let’s build this page together! When you share what it’s like to have Klinefelter syndrome through your profile, those stories and data appear here too.
Got a question about living with Klinefelter syndrome? Members in the forum might have the answers.
Who has Klinefelter syndrome on PatientsLikeMe?
- 0 new patients joined this month
- 48 say Klinefelter syndrome is their primary condition
| Age | Proportion | # of patients |
|---|---|---|
| <20 | 0 | |
| 20s | 3 | |
| 30s | 11 | |
| 40s | 2 | |
| 50s | 3 | |
| 60s | 2 | |
| 70+ | 12 |
| Age at first symptom | Proportion | # of patients |
|---|---|---|
| 0-19 years | 4 | |
| 20-29 years | 2 | |
| 30-39 years | 0 | |
| 40-49 years | 1 | |
| 50-59 years | 0 | |
| 60-69 years | 0 | |
| 70+ years | 0 |
Distribution of sex
| Sex | Proportion | # of patients |
|---|---|---|
| Male | 62 | |
| Female | 2 |
| Diagnosis status | Proportion | # of patients |
|---|---|---|
| Diagnosed | 18 | |
| Not Diagnosed | 1 |