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Often described as “varicose veins of the anus and rectum”, hemorrhoids are enlarged, bulging blood vessels in and about the anus and lower rectum. There are two types of hemorrhoids: external and internal, which refer to their location.
External (outside) hemorrhoids develop near the anus and are covered by very sensitive skin. If a blood clot develops in one of them, a painful swelling may occur. The external hemorrhoid feels like a hard, sensitive lump. It bleeds only if it ruptures.
Internal (inside) hemorrhoids develop within the anus beneath the lining. Painless bleeding and protrusion during bowel movements are the most common symptom. However, an internal hemorrhoid can cause severe pain if it is completely “prolapsed” – protrudes from the anal opening and cannot be pushed back inside.