■According to the location of occurrence, it is further divided into internal hemorrhoids, external hemorrhoids, and mixed hemorrhoids.
■The internal hemorrhoids that occur above the dentate line of the anal canal are internal hemorrhoids, which are generally not painful, so that blood and hemorrhoids prolapse are the main symptoms. In severe cases, they will spurt blood and cannot repay the hemorrhoids after prolapse. There are also difficulties in defecation and difficulty in rubbing after defecation. Clean, feel bulging, etc. According to the degree and clinical manifestations of internal hemorrhoids, it can be divided into three stages: in the first stage, hemorrhoids are bloody during defecation without prolapse, and the mucous membrane on the dentinal line is nodular swelling; in the second stage, hemorrhoids are bloody, dripping or ejecting blood during the stool Hemorrhoids prolapse, and can be repaid by itself after defecation; internal hemorrhoids prolapse during the third period of hemorrhoids defecation or when the abdominal pressure increases due to coughing, fatigue, or weight bearing, and the internal hemorrhoids prolapse and need to be repaid by hand.
■External hemorrhoids are located below the tooth line. The main symptoms are pain and lumps. There are skin tags of different sizes and shapes around the anus. According to its different pathological characteristics, it can be divided into four types: varicose, connective tissue, thrombosis and inflammation. Among them, inflammatory external hemorrhoids are the most common, which are mainly manifested as protruding skin folds on the anal margin, redness, heat pain, edema, congestion, tenderness, increased pain during defecation, and a small amount of secretions, and some may be accompanied by general malaise and fever.
■Mixed hemorrhoids have the dual characteristics of internal and external hemorrhoids. The main clinical symptoms are rectal mucosa and skin prolapse, swelling, pain, and repeated infections.