Hemorrhoids are swollen veins around your anus or lower rectum. Hemorrhoids can be internal or external. Internal hemorrhoids are inside of the rectum. External hemorrhoids are outside of the anal opening.
Hemorrhoids can sometimes be painful or itchy. They can also bleed during bowel movements.
Hemorrhoids are very common. Seventy-five percent of people will he hemorrhoids at some point. Hemorrhoids are more common in people between the ages of 45 and 65.
Explore the interactive 3-D diagram below to learn more about external and internal hemorrhoids.