Hemorrhoids aren’t always visible. Internal hemorrhoids are found inside your rectum. They’re normally not serious and tend to go away on their own. There aren’t any nerves that detect pain ...

These swollen veins create lumps in the skin on the outside of the anus (external hemorrhoids) or inside the lower rectum ...

There are three different kinds of hemorrhoids: Internal Hemorrhoids: These occur inside the rectum and are mostly painless ...

From the Rectal Clinic of the Massachusetts General Hospital. Read before a section of the American College of Surgeons at the Massachusetts General Hospital, October 17, 1934. Balch, Franklin G ...