If you keep sitting for a long time, if you have bumps on your buttocks, you need to judge the cause and the corresponding treatment according to the characteristics of the bumps.1. Folliculitis: Keeping sitting for a long time, high local temperature, sweating, more bacteria, or having bad hygiene habits can lead to local skin folliculitis. This can be treated with topical antimicrobial ointment as prescribed by the doctor, but the most important thing is to develop good habits, get up and move regularly and avoid being sedentary. You can wash the area with water every day and change your underwear regularly. Diet should be light, avoid spicy and stimulating food, avoid staying up late; 2, eczema: sedentary local poor blood circulation, poor permeability, can lead to local dampness, resulting in eczema. This situation requires the choice of loose underwear, try to keep the local dry and breathable. Can also use warm water, Chinese medicine or dilute potassium permanganate solution for cleaning, can also be properly coated with treatment eczema ointment for improvement; 3, skin aging: long-term sedentary, the whole body weight concentrated on the buttocks, can make the site pigmentation, skin aging hardening phenomenon, sometimes also accompanied by small bumps, eliminate the symptoms mainly need to reduce sitting time, regular body activities, can often massage the site The main thing to do is to reduce sitting time, regular physical activity, massage the area, reduce the intake of spicy and irritating food to help eliminate the bumps; 4.