I have a lot of red bumps on my butt and it’s itchy. What’s going on?

There are many red bumps on the buttocks accompanied by itching. On the one hand, it may be due to the poor material of the underwear and repeated friction on the skin of the buttocks, causing allergies. At this time, the patient is advised to pay attention to personal hygiene, change underwear, and maintain Keep the area dry and clean. If the itching is severe and the red pimple area is large, it may be related to eczema, urticaria, insect bite dermatitis, folliculitis and other factors.

1. Eczema: Being in an environment with dry, humid, and stuffy air for a long time will cause the human body to secrete more sweat, and the buttocks will not easily evaporate due to long periods of sitting, thus causing eczema. In addition, some female patients use longer and thicker sanitary napkins during menstruation, or do not change them in time, which may cause local air tightness and cause eczema. It is recommended that patients often open windows for ventilation, maintain indoor air circulation, and adjust temperature and humidity;

2. Urticaria: Delayed pressure urticaria usually occurs in patients who sit for a long time. It is likely that the buttocks will be pressed for a long time. It causes a large red rash on the skin of the buttocks, which may be accompanied by itching symptoms. It is a type of urticaria caused by physical factors. It can subside on its own after a period of time. The specific disease mechanism is not yet clear. Other types of urticaria may also appear on the buttocks, usually with an acute onset, and patients are advised to receive timely treatment;

3. Insect bite rash: refers to the abnormality of the body caused by venom stimulation when bitten by mosquitoes and poisonous insects. A rash caused by the reaction, with symptoms such as red rash, edema, blisters, and itching appearing on the bitten area. Ordinary mosquito bite rashes may recover in about 7-10 days, but poisonous insect bites may cause inflammation, suppuration and other adverse effects. It is recommended that patients seek medical treatment in time;

4. Folliculitis: due to improper cleaning of the patient's buttocks , sweat, dirt, dander, etc. accumulate and cover the surface of the buttocks skin, which can easily breed bacteria and cause inflammation of the hair follicles, resulting in single or flaky red papules, which may be accompanied by itching and pain.