What are Hemorrhoids?
Hemorrhoids, also known as piles, are swollen veins in the lower part of the anus and rectum, similar to varicose veins. When the walls of these vessels are stretched, they become irritated.
Hemorrhoids have a number of causes, although often the cause is unknown. They may result from straining during bowel movements or from the increased pressure on these veins during pregnancy. Hemorrhoids can either be internal or external. Internal hemorrhoids develop within the anus or rectum. External hemorrhoids develop outside of the anus. Hemorrhoids are also known as piles.
Hemorrhoids are very common, with about 50 percent of adults experiencing the symptoms of hemorrhoids by age 50.