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% of the population having one of these infections at any given moment. Animals including dogs and cats can also be affected by ringworm, and the disease can be transmitted between animals and humans, making it a zoonotic disease. Specific signs can be: * red, scaly, itchy or raised patches * patches may be redder on outside edges or resemble a ring * patches that begin to ooze or develop a blister * bald patches may develop when the scalp is affected * nails may thicken, discolour or begin to crack
Dermatophytosis
Pityriasis rosea
Onychomycosis
Psoriasis
Tinea versicolor
Dermatitis
Otomycosis
Granulosis rubra nasi