Teen health
Learning Center
Poppy seed tea: Beneficial or dangerous?
Poppy seed tea may be used as a natural pain reliever. The key is the opioids in the seed coating, which may be dangerous.
Polypill: Does it treat heart disease?
This combination pill contains small doses of several commonly prescribed heart disease medicines.
Polymyalgia rheumatica
Older adults who suddenly develop muscle pain and stiffness, especially in the shoulders, might have polymyalgia rheumatica.
Polycythemia vera
This slow-growing blood cancer mainly affects people over 60. Treatments and lifestyle changes may reduce complications and ease symptoms.
Poison ivy and other summer skin irritants
Take a look at these bumps, bites and rashes. Find out what causes them and how they can be treated.
Pneumonia
Pneumonia — Learn about the symptoms, causes and treatment of this serious lung infection.
Placenta: How it works, what's normal
Understand how this pregnancy organ works and what conditions can affect it.
Peyronie disease
Understand what causes bent and painful erections and learn what treatments are available.
Penis-enlargement products: Do they work?
Considering penis enlargement? Get the facts about male-enhancement pills, pumps, exercises and surgeries.
Penis pump
Find out how this device can be placed on your penis to create an erection.
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