Potassium permanganate for hemorrhoids is usually used in a warm water sitz bath. Potassium permanganate for hemorrhoids with warm water sitz bath can effectively promote blood circulation, eliminate the patient’s symptoms of edema, and will not irritate the skin, at the same time, it can clean the anal hygiene, can be effective in disinfection, kill the bacteria, control and eliminate local infection. Hot water may irritate the skin due to its high temperature, so warm water is recommended. Patient’s diet should be light, easy to digest and rich in nutritious food, clean and dry anus in daily life, ensure enough water intake every day as well as sufficient rest time, avoid spicy and irritating food, smoking, drinking, squatting in the toilet for a long time, defecation time is too long and so on. It is recommended that patients go to the hospital for regular checkups, reasonable treatment under the guidance of the doctor, do not self-medication.