Tinea

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Overview
Dermatophytosis are a group of mycosis infections of the skin caused by parasitic fungi (dermatophytes).

Presentations
Infections on the body may give rise to typical enlarging raised red rings of ringworm, infection on the skin of the feet may cause athlete's foot and in the groin jock itch. Involvement of the nails is termed onychomycosis, and they may thicken, discolour, and finally crumble and fall off.

They are common in most adult people, with up to 20 percent of the population having one of these infections at any given moment.

It tends to getting worse during summer and then symptoms alleviated during the winter.

Types
A number of different species of fungi are involved. Dermatophytes of the genera Trichophyton and Microsporum are the most common causative agents. These fungi attack various parts of the body and lead to the following conditions:


 * Dermatophytosis
 * Tinea pedis (athlete's foot) affects the feet
 * Tinea unguinum affects the fingernails and toenails
 * Tinea corporis affects the arms, legs, and trunk with ringworm
 * Tinea cruris (jock itch) affects the groin area
 * Tinea manuum affects the hands and palm area
 * Tinea capitis affects the scalp
 * Tinea barbae affects facial hair
 * Tinea faciei (face fungus) affects the face
 * Other superficial mycoses
 * Tinea versicolor
 * Tinea nigra

Dermatophytose Dermatofitosis Dermatophytose