Nutrition basics
Learning Center
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
Prostate laser surgery
Prostate laser surgery — Overview covers the risks and results of this treatment to relieve symptoms caused by an enlarged prostate.
Cervical cancer
Screening with Pap tests can reduce the risk of this cancer that begins in the cervix. Learn more about symptoms, causes, prevention and treatment.
Mononucleosis: Can it recur?
Mono can return in some rare cases. Learn why that happens.
Erectile dysfunction: Viagra and other oral medications
Get the facts on medicines that are taken by mouth for ED.
Fundal height: An accurate sign of fetal growth?
Understand how fundal height is measured and what it means.
Lack of sleep: Can it make you sick?
Lack of sleep can affect your immune system. Here's what you need to know.
What is thirdhand smoke, and why is it a concern?
Tobacco smoke creates toxic residue that clings to walls, carpets, clothes and other surfaces.
Tinnitus causes: Could my antidepressant be the culprit?
Ringing in the ears, also known as tinnitus, has many possible causes, such as taking antidepressants.
Diet soda: How much is too much?
Diet soda may help you cut calories, but other low-calorie options abound.
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