Potassium permanganate sitz baths after hemorrhoid surgery can be performed after each bowel movement, and the duration of the sitz baths is usually about 10 to 15 minutes, to avoid prolonged time leading to wound tearing or dislodging of the ligation threads. Hemorrhoid surgery generally includes internal hemorrhoid ligation, external hemorrhoidectomy and external and internal ligation of mixed hemorrhoids. After the operation, you can take a sitz bath with 1:5000 potassium permanganate solution, which can play the role of anti-inflammatory, reduce swelling, and keep the local anal wound clean. Patients can use 1:5000 potassium permanganate solution sitz bath after each bowel movement, and the time of sitz bath generally needs to be controlled in about 10 to 15 minutes. The time should not be too long, so as not to irritate the anus, resulting in wound tearing or ligation line detachment. If you need to use potassium permanganate bath after hemorrhoid surgery, you need to be regulated under the guidance of the doctor to avoid adverse consequences. After hemorrhoid surgery, you should also keep the bowel movement, eat less spicy and irritating food to avoid infection. Follow the doctor’s instructions.