It is mainly caused by damp heat in the large intestine, eating irritating food, and in some people it is caused by overly sensitive anal skin. Under normal circumstances, the exhaustion is not feverish feeling, but some people will be accompanied by the phenomenon of damp heat in the large intestine, the gas in the intestines of these people, there will also be an increase in temperature, and in the discharge of the humidity is relatively large, these patients in the process of exhaustion will appear feverish feeling. Eating too spicy and stimulating food in the usual diet will lead to fire in the intestines and stomach, and even lead to inflammatory stimulation of the mucous membrane of the intestinal system, and the exhausted gas will carry a certain temperature. Some people have a higher temperature of exhaust gas, which is caused by diseases such as hemorrhoids and perianal abscesses in the anus, and these diseases can cause the skin around the anus to be too sensitive, and the illusion of heat can occur during the exhaust gas due to the sensitivity.