Hot water sitz baths can assist in the treatment of the disease, reduce local inflammation and pain, and speed up the recovery of the disease. But don’t blindly take a sitz bath on your own, you should follow the doctor’s instructions and take a sitz bath when necessary. The main effect of hot water sitz bath is to promote blood circulation, can promote the absorption of inflammation, but hot water sitz bath has many contraindications. During menstruation, hot water baths are likely to cause increased menstrual flow; during pregnancy, hot water baths are likely to cause miscarriages; during puerperium, hot water baths may cause bacteria to move upward, leading to pelvic infections. In addition, abscess patients through hot water sitz bath can lead to local proliferation, inflammation aggravation. Irregular vaginal bleeding, acute pelvic inflammation, etc. may be aggravated by sitz baths when the cause of the disease is not clear. Tumor diseases such as rectal cancer, colon cancer, anal canal cancer, etc., sitz bath will promote blood circulation, which may lead to tumor metastasis and rapid growth, easy to make the disease further deteriorate. Sitz bath is not recommended in all the above cases. Therefore, the indications of sitz bath should be clarified before carrying out this treatment. First of all, it is necessary to pay attention to the water temperature should not be too high, otherwise it is easy to burn the local mucous membrane and skin. Before the sitz bath operation, hands should be washed, the bidet should be sterilized, and urine and feces should be defecated to avoid contamination. Sitz bath time should not be too long, will cause numbness of the lower body, poor blood circulation, generally control in 15-31 minutes is best. If the sitz bath process, dizziness, panic, palpitations and other phenomena, should immediately stop, if necessary, seek medical attention.