Decreased Sex Drive

Sex drive (libido) is considered decreased when interest in sexual activity is infrequent or apathetic.

Sex drive varies greatly among men. It tends to gradually decrease as men age. In some men, sex drive decreases substantially and remains decreased. In a few men, sex drive is decreased throughout life.

Sex drive can decrease temporarily because of fatigue. Alcohol, by suppressing social inhibitions, sometimes seems to increase sex drive. However, alcohol can temporarily decrease sex drive. Some drugs decrease sex drive as long as they are taken. They include antihypertensive drugs, antidepressants, certain sleep aids, and digoxin. A low level of testosterone can greatly decrease sex drive.

Mental or emotional factors may decrease sex drive temporarily or indefinitely.

Men with a decreased sex drive lose interest in masturbation and sexual fantasies. Even sexual stimulation—by touch, sights, smells, or words—does not provoke interest. However, these men may still be able to function sexually. Some men continue participating in sexual activity to satisfy their partner.

The diagnosis is usually based on the man's description of his symptoms. A blood test is done to measure the level of testosterone.

Treatment of a decreased sex drive depends on the cause. Psychologic therapies that deal with mental and emotional factors may help. If the cause appears to be a drug, a doctor can often try substituting a different drug. If the testosterone level is low, testosterone therapy can be used. Testosterone is usually given as a gel or patch applied to the skin daily. It can be given as an injection, usually every 2 weeks, but injections have no advantage over daily skin application.