Rubber band ligation (RBL) is an outpatient treatment procedure for internal hemorrhoids of any grade. There are several different devices a physician may use to perform the procedure, including the traditional metal devices, endoscopic banding, and the CRH O'Regan System.

With rubber band ligation, a small band is applied to the base of the hemorrhoid, stopping the blood supply to the hemorrhoidal mass. The hemorrhoid will shrink and fibrose within a few days with shriveled hemorrhoidal tissue and band falling off during normal bowel movements - likely without the patient noticing.

Rubber band ligation is a popular procedure for the treatment of hemorrhoids, as it involves a much lower risk of pain than surgical treatments of hemorrhoids, as well as a shorter recovery period (if any at all). It is a very effective procedure and there are multiple methods available. When done with the CRH O’Regan System, it is also associated with a recurrence rate of 5% at 2 years. The procedure is typically performed by gastroenterologists, colorectal surgeons, and general surgeons.