Since bleeding is not painful, there are two common causes: First, there may be internal hemorrhoids, which are located above the dentate line and are prone to swelling when constipation or increased abdominal pressure causes the nucleus to pool and the hemorrhoidal vein to rupture thus causing bleeding. If you have bleeding hemorrhoids don’t be nervous, if the amount of blood in the stool is not large you can undergo conservative and medication treatment. You should pay attention to your diet, avoid spicy and stimulating foods, drink more water and honey to promote the smooth discharge of stool, and insert hemorrhoid suppositories in the anus to play an anti-inflammatory and anti-swelling role. You can also carry out herbal fumigation such as bitter ginseng soup, wubaizi soup or pain relief such as Shen Tang, which can play a role in clearing heat, relieving dampness, reducing swelling and relieving pain. Second, since the anal bleeding but not painful, there may also be rectal polyps and rectal adenomas, which can be palpable through rectal diagnosis, can be performed under lumbar anesthesia or sacral anesthesia to remove rectal polyps or adenomas for pathological examination, and after complete removal, according to the type of pathological tissue, according to the results of different follow-up treatment options.