After hemorrhoid surgery anal swelling, can be used externally hemorrhoid cream, hemorrhoid suppository anus, as well as potassium permanganate for anal cleaning sitz bath. Localized anal microwave therapy or infrared irradiation, inflammation can be applied antibiotics, anal swelling generally about a week will gradually ease or disappear. Anal swelling is a common symptom after hemorrhoid surgery, such as hemorrhoids external peeling and internal ligation surgery, due to open wounds, local tissue around edema or inflammation, will cause anal swelling. Do hemorrhoid ligation surgery, hemorrhoid local ischemia, edema can also cause anal swelling. Circumferential excision and stapling of the mucosa over the hemorrhoids, i.e. PPH surgery, requires circumferential excision of the rectal mucosa and then stapling, so there will be localized tugging or irritation of the anastomotic staple, which will also cause anal swelling. In some cases, anal distension does not require treatment and will gradually resolve and disappear.