The term albinism typically refers to oculocutaneous (ok-u-low-ku-TAY-nee-us) albinism (OCA) — a group of inherited disorders where there is little or no production of the pigment melanin. The type and amount of melanin your body produces de...

Bowen Hutterite syndrome is a rare genetic disorder that is apparent at birth (congenital). The disorder is characterized by growth delays before birth (intrauterine growth retardation); failure to grow and gain weight at the expected rate (failur...

Conjunctivitis, commonly known as pink eye, is an inflammation of the conjunctiva, the thin, transparent membrane that lines the inner surface of the eyelid and covers the white part of the eye. It is usually caused by a bacterial or viral infecti...

Gianotti-Crosti Syndrome is a rare skin disease affecting children between the ages of nine months and nine years. Major symptoms may include blisters on the skin of the legs, buttocks and arms. The disorder is usually preceded by a viral infectio...

Degos disease is an extremely rare disorder in which small and medium sized arteries become blocked (occlusive arteriopathy), restricting the flow of blood to affected areas. Degos disease usually causes characteristic skin lesions that may last f...

Herpes Zoster, commonly known as shingles, is a viral infection caused by the varicella-zoster virus, the same virus that causes chickenpox. It is characterized by a painful rash with blisters that typically appears on one side of the face or body...

Histoplasmosis is an infection caused by the fungus Histoplasma. The fungus can be found in the environment, particularly in soil with a high concentration of bird or bat droppings. Histoplasma is mostly found in the central and eastern United Sta...

Keratosis pilaris (KP) facts Keratosis pilaris is a very common, benign skin disorder that affects adolescents and adults. Keratosis pilaris causes numerous small, rough, tan or red little bumps around hair follicles on th...

Pyogenic granuloma is a common type of non-cancerous skin growth that is typically small, red, and raised. It is also known as lobular capillary hemangioma. Pyogenic granulomas can develop on the skin or mucous membranes, such as the gums. They ar...

Stretch mark facts The medical name for stretch marks is striae distensae. Stretch marks are very common. Stretch marks rarely are a sign of a significant medical problem. Stretch marks are generally pa...

Subconjunctival hemorrhage is a condition in which small blood vessels in the white part of the eye (the sclera) break and leak blood. It is usually painless and causes the white of the eye to appear red or pink. It is a common condition that is u...