Hemorrhoids are a common anal and intestinal disease, which can be divided into internal hemorrhoids, external hemorrhoids, and mixed hemorrhoids. Internal hemorrhoids are often caused by pathological changes in the supporting structures of the anal cushion, arteriovenous anastomotic branches, etc., leading to hypertrophy and displacement of the anal cushion. Often manifested as intermittent fresh blood after defecation, some patients may have difficulty defecating, constipation and other symptoms. External hemorrhoids are often caused by pathological expansion of the subcutaneous venous plexus on the distal side of the dentate line or connective tissue hyperplasia. Often manifested as anal discomfort, moist and unclean, may be accompanied by itching. Some patients can be seen with skin flab, that is, connective tissue external hemorrhoids, etc.; some form subcutaneous thrombus, causing obvious pain, that is, thrombosed external hemorrhoids. Mixed hemorrhoids, i.e. internal hemorrhoids, external hemorrhoids at the same time, fused together, with the above symptoms at the same time phenomenon. Mixed hemorrhoids, if aggravated, can be ring-shaped out of the anus, that is, the formation of ring-shaped mixed hemorrhoids, seriously changing the anal anatomy. If you have perianal discomfort symptoms people, it is recommended to consult a doctor in a timely manner, for a clear diagnosis, to give reasonable treatment, to avoid aggravation of the condition.