Hot water sitz baths can assist in the treatment of the disease, reduce local inflammation and pain, and speed up recovery from the disease. However, do not blindly take a sitz bath on your own, but follow medical advice and take a sitz bath when necessary. The main effect of hot water baths is to promote blood circulation, which can promote the absorption of inflammation, but there are many contraindications to hot water baths. Sitz baths during menstruation can easily cause increased menstrual flow; sitz baths during pregnancy can easily cause miscarriage; sitz baths during the puerperium may have upward movement of bacteria and lead to pelvic infection. In addition, abscess patients can lead to local spread and increase of inflammation through hot water sitz baths. Irregular vaginal bleeding, acute pelvic inflammatory disease, etc. may be aggravated by sitz bath when the cause is not clear. For 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, and easily deteriorate the disease further. Sitz bath is not recommended for any of the above cases. Therefore, the indications for sitz bath should be clearly defined before this treatment is carried out. First of all, the water temperature should not be too high, otherwise the local mucous membrane and skin will be easily burned. Before the operation of the sitz bath, it is necessary to wash hands, disinfect the sitz bath tub, and clean the urine and stool to avoid contamination. Sitz bath time should not be too long, will cause lower body numbness, poor blood circulation, generally controlled in 15-31 minutes is best. If dizziness, dizziness, panic, palpitations and other phenomena occur during the sitz bath, should immediately stop, if necessary, seek medical attention.