External hemorrhoids are located below the dentate line of the rectum, such as the skin of the anal canal and the anal verge. Hemorrhoids are the most common anorectal disease and can be divided into internal hemorrhoids, external hemorrhoids and mixed hemorrhoids depending on where they are located. External hemorrhoids are hemorrhoids below the dentate line of the rectum, mainly located in the skin of the anal canal and the anal verge, the main manifestations of anal discomfort, wetness and uncleanliness, anal foreign body sensation, swelling, etc., and sometimes there is itching, to connective tissue hemorrhoids and inflammatory hemorrhoids are the most common external hemorrhoids. The formation of hemorrhoids is related to long-term alcohol consumption, constipation, eating a lot of irritating food, etc. A clear diagnosis can be made through anorectal examination and so on. After a clear diagnosis should be given under the guidance of the doctor to deal with the appropriate increase in dietary fiber-rich foods, change the bad habits of defecation, to maintain smooth stools, and to prevent constipation, the symptoms of severe need for surgical treatment, if necessary.