Erectile dysfunction can be a sign of a physical or psychological condition. It can cause stress, relationship strain and low self-confidence. The main symptom is a man’s inability to get or keep an erection firm enough for sexual intercourse. Patients…
If a male does not have Nocturnal penile tumescence (NPT) regularly, it can indicate a health issue, such as erectile dysfunction (ED), which involves having trouble getting or keeping an erection.