These heart conditions present at birth cause the mitral valve to leak or become narrowed. Know the symptoms and treatment.
Disease
Polio
Learn more about this contagious viral illness that affects the nervous system. Severe disease can lead to paralysis, trouble breathing and sometimes death.
Disease
Reye's syndrome
Learn about the causes and treatment of this rare but serious condition causing swelling in the liver and brain.
Disease
Tonsillitis
Learn about this common cause of sore throat in children and its treatment.
Disease
Nickel allergy
Nickel allergy is an immune system reaction to nickel. This metal is often in jewelry, clothing fasteners, electronics and many other common items.
Disease
Hemangioma
This red mark on a baby's skin looks like a rubbery bump or flat red mark and is made up of extra blood vessels in the skin. It generally goes away by age 10. Learn more about its causes and treatment.
Disease
Actinic keratosis
Find out more about this skin condition that causes a rough, scaly patch after years of ultraviolet exposure from the sun or indoor tanning.
Disease
Lice
Learn how to get rid of these tiny, wingless insects and keep them from coming back.
Disease
Lichen sclerosus
Learn more about the causes, symptoms, complications, treatment and self-care tips for this blotchy skin condition that affects the genital and anal areas.
Disease
Neurodermatitis
Learn about this itchy skin condition that can disrupt your sleep and daily activities. Treatment focuses on controlling itching and preventing scratching.
Disease
Pinworm infection
Learn more about the symptoms, treatment and prevention of this common intestinal worm infection.
Disease
Keloid scar
Learn about how to prevent, remove or flatten these problematic raised scars that form over scars from acne, tattoos, piercing and other injuries.