a skin disease characterized by large thin-walled blisters (bullae) arising from normal skin or mucous membrane

patchy baldness

a chronic skin disease characterized by dry red patches covered with scales; occurs especially on the scalp and ears and genitalia and the skin over bony prominences

a severe form of dermatitis characterized by atopy

a condition characterized by episodic narrowing of the blood vessels in the fingers and toes, resulting in reduced blood flow and color changes in the affected areas

an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs

a genetic skin condition characterized by blistering and fragility of the skin

a chronic skin condition that causes redness, swelling, and small bumps similar to acne

a chronic skin condition that causes painful, inflamed nodules and abscesses in the skin's sweat glands

an autoimmune disease that affects the blood vessels and connective tissue; fibrous connective tissue is deposited in the skin

an acquired skin disease characterized by patches of unpigmented skin (often surrounded by a heavily pigmented border)

any of several congenital diseases in which the skin is dry and scaly like a fish

a rare genetic disorder that affects the nails and can cause thickened, abnormally shaped nails, as well as other skin and oral abnormalities

caused by herpes simplex virus type 1 (HSV-1)

an overgrowth of skin layers resulting from extended exposure to the sun

an infection larger than a boil and with several openings for discharge of pus

a very common skin condition that causes one's skin to become dry, red, itchy, and bumpy

an inflammation of body tissue (especially that below the skin) characterized by fever and swelling and redness and pain

any of several forms of ulcerative skin disease

a tan discoloration of a woman's face that is associated with pregnancy or with the use of oral contraceptives

a delayed type of allergic reaction of the skin resulting from skin contact with a specific allergen (such as poison ivy)

a small, often hard elevation on the skin that is caused by an infection or a virus

a chronic skin disease associated with seborrhea and greasy scales on the scalp or eyelids or other parts of the skin

keratosis characterized by hard conical elevations in the openings of sebaceous glands (especially of arms and thighs)

infections of the skin or nails caused by fungi and appearing as itching circular patches

a very contagious infection of the skin; common in children; localized redness develops into small blisters that gradually crust and erode

viral diseases causing eruptions of the skin or mucous membrane

injuries to areas of skin and underlying tissue, usually over a bony prominence, as a result of prolonged pressure on the skin

a condition characterized by inflammation and cracks at the corners of the mouth, often caused by a combination of factors including infection, dryness, and nutritional deficiencies

inflammation of the skin; skin becomes itchy and may develop blisters

an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs

a condition where the skin on certain parts of the body appears dimpled or lumpy, caused by underlying fat deposits and connective tissue