Many people are born with birthmarks. There are a variety of different types, including congenital hemangioma and vascular malformations.
Infantile hemangioma, a type of red birthmark formed of extra blood vessels in the skin, is common and found in five to 10 percent of babies.
Alopecia areata happens when the immune system attacks hair follicles. This causes the hairs in those follicles to fall out and not grow back.
A fungal infection that can affect the skin, fingernails, toenails, and/or hair.
Photoaging is when the sun prematurely—and sometimes dangerously—ages the skin. Learn about symptoms and treatment.
Vitiligo is a disease that causes patches of skin to lose their color, resulting in white spots. Learn about causes and treatment.
Viral warts are viral infections of the skin that are most common on the hands and feet. Learn about symptoms and treatment.
Acne is a skin condition characterized by pimples, blackheads, and whiteheads on the face, back, and chest. Learn about symptoms and treatment.
Vascular abnormalities, such as aneurysms, arteriovenous malformations and cavernous malformation, occur when a blood vessel in the brain ruptures.
Vascular malformations are irregularities in arteries, veins, or lymph vessels throughout the body. Learn about symptoms and treatment.