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Dandruff with shed hair can be symptomatic of dry skin (shed skin scales and hairs on a dark wooden tabletop) The cause is unclear but believed to involve a number of genetic and environmental factors. [7] As the skin layers continually replace themselves, cells are pushed outward where they die and flake off. For most individuals, these flakes ...
In newborns, it causes a thick, yellow, crusty scalp rash called cradle cap, which seems related to lack of biotin and is often curable. (ICD-10 L21; L21.0) There is a connection between seborrheic dermatitis and Malassezia fungus, and antifungals such as anti-dandruff shampoo can be helpful in treating it. [44]
These investigations show that the M. globosa is the species that causes most skin disease in humans, and that it is the most common cause of dandruff and seborrhoeic dermatitis (though M. restricta is also involved). [6] There can be as many as ten million M. globosa organisms on a human head. [4]
The cause is unclear but believed to involve a number of genetic and environmental factors. [2] [4] Risk factors for seborrhoeic dermatitis include poor immune function, Parkinson's disease, and alcoholic pancreatitis. [4] [6] The condition may worsen with stress or during the winter. [4] Malassezia yeast is believed to play a role. [6]
Lilies. This one can be dangerous immediately. All cats can have a lethal reaction to all parts of a lily, the flower, the leaves, the stems, everything.
Aquarium fish are often susceptible to numerous diseases, due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat. Most fish diseases are also aggravated when the fish is stressed. Common aquarium diseases include the following:
JAMA's article points out two primary stress factors most commonly linked to depression -- including social stresses such as those caused by a relationship breakup, and the type of depression ...
Parasitic infestations, stings, and bites in humans are caused by several groups of organisms belonging to the following phyla: Annelida, Arthropoda, Bryozoa, Chordata, Cnidaria, Cyanobacteria, Echinodermata, Nemathelminthes, Platyhelminthes, and Protozoa. [69] [72] Acanthamoeba infection; Amebiasis cutis; Ant sting; Arachnidism; Baker's itch