Klinefelter's Syndrome in Adults

Most Klinefelter's Syndrome men do not exhibit overt symptoms beyond what is displayed from puberty onwards. You may first notice a problem when you experience:

  • Small and often hard testes.
  • Lack of libido / little or no sexual motivation.
  • Low sexual motivation.
  • Erectile difficulties.
  • Infertility.
  • Varicose veins that tend to ulcerate or clot (thrombosis).
  • Mitral valve prolapse.
  • Poor self-esteem.
  • Psychological distress.

Late diagnosis of men with KS often is associated with feelings of anger, frustration and missed opportunity. Counselling and/or professional psychological support is needed at this time.
Often an adult KS diagnosis is made when investigation is undertaken for sexual problems or issues with starting a family.

Untreated KS men are more prone to diabetes, heart problems, obesity, reduced quality of life and shorter life expectancy.

KS and Infertility: There have been very recent break-through techniques in assisted reproductive therapies (ART) which have allowed some KS men to father their own biological children.
KS adolescents and men should see a reproductive endocrinologist for a detailed fertility assessment.

See your doctor

Klienfelter Syndrome in Adult Men

See your doctor