There are several types of skin ringworm, mainly these six types

Skin ringworm is a disease caused by fungal infection. There are many types of this disease, the most common of which are facial ringworm, hand ringworm, cruri ringworm, tinea versicolor, pedis ringworm and body ringworm. However, no matter which one it is, the consequences are very serious, so everyone must seek timely treatment.

1. Facial tinea: It is caused by infection with Trichophyton rubrum, manifested as typical annular skin lesions with a small amount of scales visible on the edges. However, it is not obvious due to frequent face washing, and the redness and swelling of the edges may become active due to the incorrect application of external medications. This type of patient usually only uses a towel to wash the whole body, which is caused by infection in other parts of the body, especially tinea pedis.

2. Tinea manuum: It is caused by infection with Trichophyton rubrum and Trichophyton mentagrophytes, and is more common in young and middle-aged women. Most lesions are unilateral, but rarely bilateral. It can be divided into vesicular scaly type: it is prone to occur between the fingers, palms and wrists. The skin lesions initially appear as deep blisters the size of a needle tip. The blister fluid is clear, the walls are thick and shiny, and they are not easy to break. They can merge into clustered blisters, and the itching is obvious. After the blisters dry, local desquamation occurs, and they can continue to spread to the surrounding areas. Hyperkeratosis type: blisters are not obvious, the skin lesions are mostly dry and thickened, the surface is rough and prone to cracking and bleeding, there is generally no itching, and it is painful when cracking occurs. Maceration and erosion type: It often occurs between the fingers, especially between the 3rd to 4th and 4th to 5th fingers. The skin is soaked and white, the surface is soft and easy to peel off, revealing redness and erosion, and even cracks, with varying degrees of itching, and a foul odor when secondary bacterial infection occurs.

3. Tinea cruris: It is caused by infection with Epidermophyton floccosum, Trichophyton rubrum and Trichophyton mentagrophytes. It often occurs in the thigh near the scrotum, usually first on the left side, often affecting both sides at the same time, and can spread to infect the skin of the buttocks. The lesions have clear boundaries and raised edges, forming a semi-ring shape, accompanied by desquamation, and local itching occurs when exposed to heat and humidity. The scrotal skin may be completely normal or only minimally affected.

4. Tinea versicolor: It is caused by Malassezia infection, and is prone to occur on the chest, back, abdomen and limbs, and is less common on the face, scalp and genitals. It starts as tiny spots, gradually expanding into round or macules the size of soybeans or broad beans, with clear boundaries; the surface is covered with dust-like or chaff-like scales and is shiny. The color can be white, reddish brown or light yellowish brown, with black and white mixed in a spotted pattern. There are generally no obvious subjective symptoms, and occasionally there is mild itching.