Bleeding hemorrhoids are internal bleeding hemorrhoids. While external hemorrhoids usually do not show bleeding and should be mainly painful. Internal hemorrhoids grow above the anal tooth line and have a rich blood supply to the rectal mucosa, and due to the venous tortuous and dilated veins produce venous masses, which will grow and form phlebitis and lead to a brittle rectal blood vessel wall, which is likely to bleed due to stool irritation. In the early stage, internal hemorrhoids do not bleed much and generally bleed intermittently. In the later stages, as the hemorrhoids continue to worsen, they may bleed more, sometimes in a jet-like fashion, and are best treated surgically. This is because heavy and prolonged bleeding may lead to anemia in the organism, and it is difficult to deal with hemorrhoids when they are anemic.