Fitness basics
Learning Center
Penis fracture: Is it possible?
Know the symptoms of this health concern.
Penis health: Identify and prevent problems
Understand the factors that affect penis health and how to identify problems.
Penis pump
Find out how this device can be placed on your penis to create an erection.
Penis-enlargement products: Do they work?
Considering penis enlargement? Get the facts about male-enhancement pills, pumps, exercises and surgeries.
Peyronie disease
Understand what causes bent and painful erections and learn what treatments are available.
Post-vasectomy pain syndrome
Learn about post-vasectomy pain syndrome (PVPS) — How it happens after a vasectomy, tests to diagnose it and treatment options.
Premature birth
Here's what you need to know about caring for a premature baby and the possible health problems of a preterm birth.
Premature ejaculation
Understand what may cause ejaculation to happen earlier than wanted during sex. Also learn how to treat and prevent it.
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
Probiotics and prebiotics: What you should know
Probiotics are foods or supplements that contain 'good' bacteria that might help treat or prevent illness. Should they be part of your diet?
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