Internal hemorrhoids generally in the anus from the anal margin of 3 ~ 4 cm above, mainly refers to the occurrence of the dentate line above the varicose vein mass, mainly and the anatomical location has a close relationship. Clinically, hemorrhoids are divided into internal hemorrhoids and external hemorrhoids, both of which are mainly divided by the dentate line, and above the dentate line are internal hemorrhoids. Generally, the dentate line is about 3~4 cm from the anal verge, so internal hemorrhoids mainly occur in the anus from the anal verge of 3~4 cm above the position, is a tortuous expansion of the vein mass, will cause bleeding and pain symptoms. The internal hemorrhoids themselves and accompanied by obvious blood stool, pain, seriously affect the bowel movement, need to consult a doctor in a timely manner, after diagnosis of the specific conditions in the clinician’s guidance to standardize the treatment, to avoid causing delays in the condition.