MedlinePlus

MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). It was built as an online health information resource for patients and their families and friends.

MedlinePlus presents high-quality, easy to understand, relevant health and wellness information that is trusted.

Alphabetical Listings

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MedlinePlus at a Glance

Offers information on health topics, human genetics, medical tests, medications, dietary supplements, and healthy recipes.
Sourced from more than 1,600 selected organizations.
Provides 40,000 links to authoritative health information in English and 18,000 links to information in Spanish.
In 2018, 277 million users viewed MedlinePlus more than 700 million times.

Sexual Problems in Men

Many men have sexual problems. They become more common as men age. Problems can include:

Erectile dysfunction
Reduced or lost interest in sex
Problems with ejaculation
Low testosterone

Stress, illness, medicines, or emotional problems may also be factors. Occasional problems with sexual function are common. If problems last more than a few months or cause distress for you or your partner, you should see your health care provider.