From a medical point of view, if a lying position or sitting position is maintained for a long time, local skin, such as the one where the buttocks contact with the stool, will be subject to certain pressure, which will affect the blood circulation of skin tissue at the compressed part, causing ischemia and hypoxia. If this state continues, it is easy to cause redness and swelling, blisters, and even ulcers, thus ulcerating and necrosis. This kind of skin disease process mainly caused by pressure is called bedsore. I still remember when I was at school, because I sat for a long time every day, Butt often have a bench out of a red and swollen marks, sometimes touch still Read More …