What is the cause of red anal bleeding without pain?

Anal bleeding without pain is usually bright red rectal polyps, internal hemorrhoids and other causes. Rectal polyps are more common rectal swelling lesions, generally can be divided into inflammatory, proliferative, tumorous, etc. And internal hemorrhoids are usually due to varicose veins on the surface of the rectal mucosa, thus forming. For this disease, when the abdominal pressure rises or the rectal space is squeezed, such as defecation, cough, squatting, etc., the surface mucosa of hemorrhoids and polyps will be damaged due to pressure, resulting in bleeding symptoms. It is recommended that patients go to the anorectal department for anal digital examination and anoscopy.