Find out more about this usually harmless, common skin bump in adults.
Disease
Epidermolysis bullosa
Learn about a rare inherited disease that often shows up in infancy and causes fragile, blistering skin on the palms and feet. Severe disease may be fatal.
Disease
Cold urticaria
Cold causes this allergic skin response. It most often affects young adults, with symptoms ranging from mild to serious.
Disease
Diaper rash
Learn more about the causes, prevention and home remedies for this common condition that irritates skin under diapers.
Disease
Frostbite
Learn how to prevent cold injury to the skin when outdoors in freezing temperatures and how to treat and recover from frostbite.
Disease
Hair loss
This common and sometimes stressful condition may result from heredity, medications or medical conditions. Treatment may reverse or slow hair loss.
Disease
Ingrown hair
Learn about causes, treatment and prevention of this common, painful skin condition — sometimes called razor bumps, barber's itch, shave bumps and pseudofolliculitis barbae.
Disease
Moles
Moles, also known as nevi, are a common type of skin growth that vary in color, shape and size. While most moles are most often harmless, they rarely can become cancerous.
Disease
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Disease
Chronic exertional compartment syndrome
Learn about this condition that causes pain and swelling in muscles of the legs or arms during exercise.
Disease
Vertebral tumor
Learn about these tumors that grow in the bones of the spine, causing pain and weakening the spinal column. Find out about diagnosis and treatment.
Disease
Tennis elbow
Repeated motion of the wrist and arm often cause this condition. It affects athletes and nonathletes. Learn how to prevent and treat it.