Appropriate sitz bath helps the health of the body, but if long-term sitz bath will cause harm to the body, such as inflammatory diseases, skin diseases and so on. 1. Inflammatory diseases: If women take a sitz bath for a long time, it will lead to the occurrence of gynecological diseases, especially during physiological period to take a sitz bath, easy to lead to the breeding of bacteria, which will cause the vaginal flora imbalance. Men who take a sitz bath for a long time will cause bacteria to invade the body. 2. Skin diseases: The pores of the skin are open when the patient takes a sitz bath, which can easily cause bacteria and viruses to enter the body, easily causing infections or skin diseases. Appropriate sitz bath is good for health and can promote blood circulation in the body, but should pay attention to the temperature of the water, the temperature should be appropriate, otherwise it may lead to burns or cold. The water in the sitz bath should also be clean and should be used exclusively to avoid cross infection.