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A bruise, also known as a contusion, is a type of hematoma of tissue, [3] the most common cause being capillaries damaged by trauma, causing localized bleeding that extravasates into the surrounding interstitial tissues. Most bruises occur close enough to the epidermis such that the bleeding causes a visible discoloration.
Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration ().
Other causes include dryness of the skin due to ageing and skin or systemic disorders, [11] allergic reactions to wound care products, [12] damage that may result from poor application and removal technique of adhesive products used in wound treatment, [13] as well as exposure to infection or extrinsic contaminants at the time of wound dressing ...
A contusion is the discoloration of the skin, which results from underlying muscle fibers and connective tissue being crushed. This can happen in a variety of ways such as a direct blow to the skin, or a fall taken against a hard surface. The discoloration in the skin is present when blood begins to pool around the injury.
Grey Turner's sign refers to bruising of the flanks, the part of the body between the last rib and the top of the hip.The bruising appears as a blue discoloration, [1] and is a sign of retroperitoneal hemorrhage, or bleeding behind the peritoneum, which is a lining of the abdominal cavity.
Puncture wounds – caused by an object puncturing the skin, such as a splinter, nail, knife or sharp tooth. [10] Penetration wounds – caused by an object such as a knife entering and coming out from the skin. [citation needed] Gunshot wounds – caused by a bullet or similar projectile driving into or through the body. There may be two ...
We talked to doctors about the causes and medical treatments for scalp scabs. ... “A scab is a dry crust of serum and blood that forms a protective crust over an injury or wound,” Dr. Thosani ...
Maceration is defined as the softening and breaking down of skin resulting from prolonged exposure to moisture. It was first described by Jean-Martin Charcot in 1877. [1] [2] Maceration is caused by excessive amounts of fluid remaining in contact with the skin or the surface of a wound for extended periods.