Wrist ringworm may be the occurrence of ringworm, which includes three types, blister type manifested as pinpoint-sized blisters, scaly keratinized type manifested as rough skin, macerated vesicles type manifested as skin maceration whitening. 1. Blister type: the initial blister seems to be the size of a needle tip, not easy to break, the blister wall is thick and shiny. The blisters can be fused to form multi-housed blisters, and itching is obvious. 2. scaly keratosis type: manifested as diffuse skin roughness, thickening, desquamation, dryness, etc., easy to occur in winter cracking or even bleeding, can be accompanied by pain, generally no obvious itching. 3. Impregnated erosion type: mostly seen in sweaty, water-impregnated hand crevices, more frequent in summer. Performance for the skin impregnation white, the surface is soft and easy to peel off, revealing red vesicles and ooze, often accompanied by fissure, itching is more obvious, bacterial infection can be accompanied by a foul smell. Ringworm patients should go to the hospital in time, under the guidance of the doctor standardized treatment.