Labor and delivery
Learning Center
Angelman syndrome
Learn about this genetic disorder that causes developmental delays, problems with speech and other symptoms.
Anaphylaxis
Anaphylaxis, a severe allergic reaction, is an emergency. Learn who's at risk, what to watch for and what to do when it occurs.
Anal pain
Anal pain: Symptom — Overview covers definition, possible causes of this common symptom.
Amniocentesis
Find out about this prenatal test that checks the fluid surrounding the baby during pregnancy.
Amenorrhea
Absence of menstruation (amenorrhea) may be linked to an underlying, treatable problem. Learn about amenorrhea causes and when to seek help.
Alzheimer's stages: How the disease progresses
Alzheimer's stages — common behaviors as the disease progresses.
Alzheimer's or depression: Could it be both?
Alzheimer's and depression have some similar symptoms. Proper treatment improves quality of life.
Allergy skin tests
Considering skin testing for your allergies? Learn about the risks, results and what to expect during testing.
Allergy medications and pregnancy: What's safe?
Find out what medicines can help you manage allergies while you're pregnant.
Allergies
Allergy symptoms can range from mild to severe, even life-threatening. Most allergies can't be cured, but treatments can help.
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