Andrology (Male sexual disorder + infertility)

Erectile dysfunction (ED) is a condition wherein a man fails to keep an erection firm enough for sexual intercourse. A person with ED have a persistent inability to attain and maintain a sufficient erection so as to permit satisfactory sexual intercourse. Erection trouble at times is not a major cause of concern, however, if the dysfunction is continued for a longer period then it may cause relationship problem, stress or may affect self-confidence.

Epidemiologic studies report that approximately 5–20% of men have moderate to severe erectile dysfunction.