1, internal hemorrhoids Occurring above the dentate line, painless intermittent bleeding, bright red, dripping or spraying blood is the main symptom, and the nucleus of hemorrhoid prolapses as the main symptom. According to the prolapsed hemorrhoid, there are four stages: Stage I: painless blood in the stool, blood is not confused with stool, no prolapse, bleeding can stop on its own after the stool. Stage II: Blood dripping or spraying during stool, with prolapsed hemorrhoid nucleus, which can be retracted by itself after stool. Stage III: Blood or dripping blood in the stool, bleeding has decreased, the nucleus of the hemorrhoid is prolapsed and requires external force to retract, when the patient stands and squats for a long time, coughing, exertion, weight bearing, etc. the nucleus of the hemorrhoid will prolapse again. Stage IV: The nucleus of the hemorrhoid cannot be retracted for a long time and can be accompanied by strangulation, impaction, pain and other symptoms. 2.External hemorrhoids occur in the anal canal below the dentate line and the edge of the anus. The surface of external hemorrhoid is covered with skin, which can be seen or touched, and the nucleus cannot be sent into the anus, so it is not easy to bleed. (1) Inflammatory external hemorrhoids: often caused by skin damage and infection at the anal verge. The skin of the anal verge protrudes like blisters. The swelling and pain are obvious. (2) Thrombosed external hemorrhoids: The anal venous plexus ruptures and blood leaks out of the vessels, forming a thrombus that bulges under the skin. It is characterized by sudden onset, local swelling and severe pain. (3) Connective tissue external hemorrhoids: due to chronic inflammatory stimulation, repeated inflammation and swelling, resulting in larger skin folds at the anal margin and proliferation of connective tissue, forming skin pendulous of different sizes. (4) Varicose external hemorrhoids: subcutaneous varicose vein masses around the anal verge, which increase in size when squatting with increased abdominal pressure and defecation, and the symptoms can be alleviated to varying degrees after resuming normal body position. 3.Mixed hemorrhoids Mixed hemorrhoids occur above and below the dentate line in the same direction of the anus. Painless intermittent bleeding after stool, mainly dripping blood, in the middle stage there will be hemorrhoid nucleus prolapse, followed by pain, swelling and other symptoms; in the later stage due to long-term prolapse of hemorrhoid nucleus and anal sphincter relaxation, there is often secretion, secretion stimulation perianal area can cause anal pruritus or perianal eczema. Clinical symptoms of both internal and external hemorrhoids.