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Symptoms include red or purple or black skin, swelling, severe pain, fever, and vomiting. [3] The most commonly affected areas are the limbs and perineum. [2] Bacterial infection is by far the most common cause of necrotizing fasciitis. Despite being called a "flesh-eating disease", bacteria do not eat human tissue.
The underlying skin is unscarred and looks superficially normal. Although these patches can take many shapes, they are usually round or oval. [19] Alopecia areata most often affects the scalp and beard, but may occur on any part of the body with hair. [20] Different areas of the skin may exhibit hair loss and regrowth at the same time.
Rodent mite bites leave multiple groups or individual small itchy papules (around 1–2 mm in diameter) [7] on the skin (papular urticaria). [ 9 ] [ 10 ] These are found mostly "on the upper extremities, neck, upper trunk and face".
Humans typically report itching from mite bites within 10 to 16 hours after contact. The victims often do not recall being bitten. The rash that results from the bites is usually described as a red patch with a small blister in the center, most often found on the neck, face, arms, or upper torso.
The regrowth of lost tissues or organs in the human body is being researched. Some tissues such as skin regrow quite readily; others have been thought to have little or no capacity for regeneration, but ongoing research suggests that there is some hope for a variety of tissues and organs.
Some tissues such as skin, the vas deferens, and large organs including the liver can regrow quite readily, while others have been thought to have little or no capacity for regeneration following an injury. Numerous tissues and organs have been induced to regenerate. Bladders have been 3D-printed in the lab since 1999.
Topical crude onion juice from Australian brown onion was used in a 2002 study to regrow hair in bald people. [63] A small 2002 study demonstrated that treatment twice daily for six weeks with crude onion juice from Australian brown onion, re-growth hair on alopecia areata (spot baldness) in 86.9% of the 23 participants. [63]
Fibrodysplasia ossificans progressiva (/ ˌ f aɪ b r oʊ d ɪ ˈ s p l eɪ ʒ (i) ə ɒ ˈ s ɪ f ɪ k æ n z p r ə ˈ ɡ r ɛ s ɪ v ə /; [1] abbr. FOP), also called Münchmeyer disease or formerly myositis ossificans progressiva, is an extremely rare connective tissue disease in which fibrous connective tissue such as muscle, tendons, and ligaments turn into bone tissue (ossification).