Warm water sitz bath for hemorrhoids is generally about 15 minutes each time, 1-2 times a day, preferably taken after a bowel movement or before bedtime. The first is that if there is a local thrombosis, a warm water bath can speed up the dissolution of the thrombus and disappear. The second, if the hemorrhoids have local edema, warm water sitz bath can promote the edema to subside, especially after adding edible salt to form a hypertonic warm salt water, the treatment effect on the swelling is even better. Thirdly, warm water bath can clean around the anus and reduce the pollution and infection material stimulating around the anus and aggravating the symptoms of hemorrhoids. Fourth, warm water baths can accelerate local blood circulation and reduce the bruising state of hemorrhoids.