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An abscess is a collection of pus that has built up within the tissue of the body, usually caused by bacterial infection. [6] [7] Signs and symptoms of abscesses include redness, pain, warmth, and swelling. [1]
Skin aspiration of nonpurulent cellulitis, usually caused by streptococcal organisms, is rarely helpful for diagnosis, and blood cultures are positive in fewer than 5% of all cases. [16] It is important to evaluate for co-existent abscess, as this finding usually requires surgical drainage as opposed to antibiotic therapy alone.
The scalp, ears, back, face, and upper arm, are common sites of sebaceous cysts, though they may occur anywhere on the body except the palms of the hands and soles of the feet. [4] They are more common in hairier areas, where in cases of long duration they could result in hair loss on the skin surface immediately above the cyst. They are smooth ...
Erysipelas (/ ˌ ɛ r ə ˈ s ɪ p ə l ə s /) is a relatively common bacterial infection of the superficial layer of the skin (upper dermis), extending to the superficial lymphatic vessels within the skin, characterized by a raised, well-defined, tender, bright red rash, typically on the face or legs, but which can occur anywhere on the skin.
Hidradenitis suppurativa is a chronic inflammatory skin condition that impacts up to two percent of people in the U.S. (That's roughly 6.5 million people.) But while the condition can be ...
Flat feet (Pes planus foot) essentially means that the arch inside the foot is flat. This very common painless disorder may occur at birth or after pregnancy. Flat feet generally do not cause problems but may sometimes cause the foot to rotate inwards (pronation). There are orthotic shoe insoles (foot orthotics) that help correct flat feet.
Pilonidal cysts may be caused by a congenital pilonidal dimple. [14] Excessive sweating can also contribute to the formation of a pilonidal cyst: moisture can fill a stretched hair follicle, which helps create a low-oxygen environment that promotes the growth of anaerobic bacteria, often found in pilonidal cysts. The presence of bacteria and ...
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
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