It is said that nine out of ten men have hemorrhoids, and it is not uncommon for women to have them as a clinical category. We’ll take a look at the classification of hemorrhoids and their respective characteristics today. Hemorrhoids are divided into three categories: internal, external and mixed hemorrhoids, based on the dentate line and below. The symptoms of each type of hemorrhoid are different, and the clinical diagnosis is based on a different basis. 1. Internal hemorrhoids occur above the dentate line and are characterized by painless intermittent bleeding, bright red, dripping or squirting blood, and prolapsed hemorrhoids 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 in the 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 symptoms such as strangulation, impaction and pain. 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. The skin of the anal verge protrudes like a blister. Swelling and pain are obvious. Thrombosed external hemorrhoids: The anal venous plexus ruptures and blood leaks out of the blood vessels, forming a thrombus that bulges under the skin. It is characterized by sudden onset, local swelling and severe pain. Connective tissue external hemorrhoids: Repeated inflammation and swelling due to chronic inflammatory stimulation, resulting in larger skin folds at the anal margin and proliferation of connective tissue, forming skin pendulousness of varying sizes. Varicose external hemorrhoids: subcutaneous varicose vein mass around the anal edge, squatting abdominal pressure increases, enlarges when defecating, and the symptoms can be reduced to varying degrees after resuming normal 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; later due to long-term prolapse of hemorrhoid nucleus and anal sphincter relaxation, there are often secretions, secretions stimulate the perianal area can cause anal itching or perianal eczema. Clinical symptoms of both internal and external hemorrhoids.