Commonly known as piles, hemorrhoids resemble cushions of tissues in the anal region; they are filled with blood vessels, and support tissue, muscle, and elastic fibers. In their normal state, they are cushions that help with stool control. They become a disease when swollen or inflamed. According to a study, half the population in the U.S.A suffers from hemorrhoids by the time they reach the age of 50. Types Of Hemorrhoids Internal Hemorrhoids: Generally painless, even when there’s some bleeding. The tissue which hangs out of the anus can be felt physically. It is associated with discomfort, pain and itching. Large internal hemorrhoids can induce the sensation of fullness in the rectum. External Hemorrhoids: The type with bluish lumps that can be seen and felt. They can bleed if broken. They are known to be painful due to the highly sensitive overlapping skin. Blood clotting in external hemorrhoids causes severe pain. Once they get dissolved, they leave behind a loose skin called the skin tag. Thrombosed hemorrhoids: Sometimes blood may accumulate in the external hemorrhoid. They form a clot called as thrombus that can result in severe pain, inflammation, swelling, and a hard lump near the anus. Symptoms A hard lump can be felt around the anal region.