Teen health
Learning Center
Premenstrual syndrome (PMS)
Mood swings, cramps and irritability are just a few telltale clues that you're getting your period. Learn what you can do for PMS symptom relief.
Valley fever
Learn about symptoms and treatment for valley fever — an infection caused by fungi found in the soil of America's desert regions.
Vascular dementia
Learn more about this stroke-related type of dementia that causes memory loss and reasoning problems. Prevention is possible, and good heart health is key.
Triple X syndrome
Females with this genetic disorder have three X chromosomes instead of two. Symptoms can be mild or include developmental delays and learning disabilities.
Infectious diseases
Viruses, bacteria, fungi and parasites can all cause infection. Find out more about how to prevent and treat these conditions.
Malaria
Learn about the symptoms, causes, treatment, and prevention of this infectious disease transmitted to humans through mosquito bites.
Blocked tear duct
Watery, irritated eyes may occur when your tears can't drain normally. Learn about this common eye condition that affects newborns and sometimes, adults.
Ramsay Hunt syndrome
A shingles outbreak can affect the facial nerve near one of your ears, potentially causing facial paralysis and hearing loss.
Osteoarthritis
This most common form of arthritis mainly affects joints in your hands, knees, hips and spine. There's no cure, but symptoms can be managed.
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
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