The significant swelling in the anus due to hemorrhoids is one of the more common complications. Usually, hemorrhoids are caused by varicose veins around the anus and can also form thrombi or venous blood clots around the anus, thus causing a significant swelling and swelling in the anus. In addition to this cause, the obstruction of blood flow in the perianal veins can also lead to bruising and swelling around the anus. This phenomenon should be actively treated by using potassium permanganate lotion for timely cleaning and anti-inflammatory treatment around the anus to relieve the swelling sensation. The actual anal area can be reduced by using potassium permanganate to cleanse the area and reduce the swelling and pain.