Hemorrhoids can use potassium permanganate sitz bath, potassium permanganate sitz bath can reduce the wound localized swelling, pain, inflammation reaction, etc., but also can keep the wound site clean and clean, specific under the guidance of the doctor to use. Hemorrhoids are mainly caused by congestion and enlargement of the veins in the anal canal or lower rectum, which mainly manifests as perianal swelling, itching, pain, bleeding and other symptoms. Potassium permanganate belongs to a strong oxidizing agent, through the sitz bath can reduce the inflammatory reaction, reduce the swelling caused by hemorrhoids, pain and other symptoms, to keep the wound area clean and clean, to promote the healing of the wound. Generally, the ratio of potassium permanganate solution to warm water is 1:5000, and the temperature of warm water is between 36-40℃. Potassium permanganate solution, widely used in the treatment of perianal diseases, such as hemorrhoids, anal fissure, or hemorrhoids, perianal pus pus, anal fistula and other postoperative treatment. However, attention should be paid to the use of high concentration and high temperature of potassium permanganate solution sitz bath to avoid burning the skin, drug allergy is prohibited.