Read about what happens when someone is exposed to high doses of radiation, and what you can do to prevent such exposure in an emergency.
Disease
Pulmonary hypertension
This lung condition makes the heart work harder and become weak. Changes in genes and some medicines and diseases can cause it. Learn more.
Disease
Metatarsalgia
With this condition, the ball of the foot becomes painful and irritated. Learn about the causes, treatments and prevention of this injury.
Disease
Listeria infection
This illness is caused by bacteria that spreads in food. It can be very serious for some people. Learn about symptoms, treatment and tips to prevent it.
Disease
Multiple endocrine neoplasia, type 2 (MEN 2)
Learn about this rare disorder that causes tumors and overproduction of hormones.
Disease
Essential tremor
Learn about this condition that causes uncontrollable shaking and find out how it differs from Parkinson's disease.
Disease
Immune thrombocytopenia (ITP)
Caused by low levels of platelets, symptoms may include purple bruises called purpura, as well as tiny reddish-purple dots that look like a rash.
Disease
Brain tumor
Find out more about the different types, signs, symptoms and causes of brain tumors, which are growths of cells in the brain.
Disease
Ulcerative colitis
This type of inflammatory bowel disease causes swelling and sores in the digestive tract. Learn more about symptoms and treatment.
Disease
C. difficile infection
Learn more about this diarrhea-causing infection that often occurs after antibiotic use. Many, but not all, people who get it are in health care facilities.
Disease
Geographic tongue
Geographic tongue may look alarming, but it does not cause health issues. Sometimes it can cause tongue pain and make you more sensitive to certain foods.
Disease
Dry macular degeneration
Blurred or reduced central vision could be a sign of macular degeneration. Find out about symptoms and treatment for this common eye disorder.