Skin Bulla – Blister – Definition and Treatment

Definition of Bulla Bulla is a large (5 millimeters or greater) blisterlike formation, raised and fluid filled, that may hurt or itch. Infection, contact irritants, immune response, and systemic health conditions may cause bullae. Bullous dermatitis may result from contact with plants such as poison ivy, oak, or sumac. To determine the cause of bullous eruptions, […]

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Epidermolysis Bullosa – Types, Symptoms and Treatment

Definition of Epidermolysis Bullosa Epidermolysis Bullosa – The collective term for a group of inherited skin disorders that result in blisterlike formations (bullae) on the skin. Severity can range from mild (a few bullae) to debilitating (bullae covering large areas of the body). Dermatologists classify epidermolysis bullosa according to the layer of the skin where the bullae originate. […]

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Keratosis Pilaris – Definition and Treatment

Definition of Keratosis Pilaris Keratosis Pilaris is a very common condition in which the keratocytes produce excessive keratin, clogging the hair follicles and forming small bumps on the skin that resemble goose bumps. The bumps may be the same color as the skin or slightly reddened and create a texture like rough sandpaper on the skin’s surface. Occasionally the bumps itch. […]

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Pustule on Face and Skin – Definition and Treatment

Definition of Pustule Pustule is a blisterlike formation that contains a pus, thick fluid of white blood cells, cellular debris, and sometimes bacteria. Pustules tend to hurt and sometimes itch. They commonly develop in numerous dermatologic conditions ranging from acne to folliculitis to psoriasis. Often pustules resolve without medical intervention, going away when the underlying condition causing them is under […]

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Dermatitis – Definition, Symptoms, Causes, Treatment

Definition of Dermatitis The different types of dermatitis are classified according to the cause of the condition. Contact dermatitis is the condition caused by an allergen or an irritating substance. Irritant contact dermatitis accounts for 80% of all cases of contact dermatitis. Atopic dermatitis is very common worldwide and increasing in prevalence. It affects males […]

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Bullous Pemphigoid – Definition and Treatment

Definition of Bullous Pemphigoid Bullous Pemphigoid is an autoimmune disorder in which itchy bullae (blisterlike formations) develop on the skin. Bullous pemphigoid is more common in people age 50 and older, and typically occurs in those who are 70 or older. The bullae tend to concentrate in areas where there are skin folds, such as the groin and […]

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Erysipelas Infection – Treatment

Definition of Erysipelas Infection Erysipelas is a streptococcal infection of the dermis, the middle layer of the skin. Infection commonly follows strep throat, with the bacteria likely carried on the hands to the skin where a scratch or other breach allows the bacteria to colonize into an infection. The infection presents characteristic symptoms that allow prompt clinical diagnosis. These symptoms include Redness […]

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Lichen Planus – Definition, Treatment and Symptoms

Definition of Lichen Planus Lichen Planus – a common condition affecting the skin that appears as small, shiny, reddish purple (violaceous) bumps that itch, sometimes intensely. The bumps grow together in a scalelike pattern that resembles tree lichen. Lichen planus nearly always occurs in adults. Symptoms and Diagnostic Path Lichen planus typically erupts on the inner surfaces of the […]

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Rash Definition and Associated Conditions

Definition of Rash Rash is a general term for a broad range of skin eruptions. It is a symptom rather than itself a health condition and may accompany numerous dermatologic or systemic conditions. Viral and bacterial infections, immune and autoimmune responses, toxic contacts, systemic illnesses, chronic health conditions, and parasitic infestations often cause rashes. Many rashes are […]

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Callus – Definition, Removal and Treatment

Definition of Callus Callus is an accumulation of keratocytes that form a thickened area of skin in response to repeated friction or pressure, typically at the site of repeated blistering. A callus may be a different color than the surrounding skin, often grayish or yellowish. Calluses are most likely to develop on the palms, fingers, fingertips, heels, […]

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