Fitness basics
Learning Center
HPV infection: A cause of cancer in men?
Learn what types of cancer HPV can cause in men and how you can reduce your risk.
Penis health: Identify and prevent problems
Understand the factors that affect penis health and how to identify problems.
Erectile dysfunction
Understand what can cause the inability to get and keep an erection firm enough for sex and the possible treatment options.
Withdrawal method (coitus interruptus)
The withdrawal method — pulling the penis out of the vagina before ejaculation — isn't the most effective birth control. Learn about the pros and cons.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
Penis pump
Find out how this device can be placed on your penis to create an erection.
Scrotal masses
Lumps in the scrotum have various causes. Even painless lumps should be checked promptly by a health care professional.
Belly fat in men: Why weight loss matters
Belly fat can be dangerous. Understand why and how to get rid of it.
Senior sex: Tips for older men
Sex isn't just for the young. Get tips for staying active, creative and satisfied as you age.
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