Polyps are unwanted growths on the surface of body tissues. Depending on the location, polyps can be divided into various types. 1. Intestinal polyps: a class of protruding from the mucosal surface to the intestinal lumen of the bulging lesions. Pathologically, they are divided into adenomatous polyps, inflammatory polyps and misshapen polyps. 2. Gallbladder polyp: a protruding or elevated lesion that points to the lumen of the gallbladder. Pathologically, they are divided into tumor polyps (adenoma, adenocarcinoma, etc.) and non-tumor polyps (cholesterol polyps, inflammatory polyps, adenomatous hyperplasia, etc.). 3. Nasal polyps: benign tumors formed by the proliferation of mucosa protruding from the nasal passage into the nasal cavity, the treatment of which is based on the combination of drugs and surgery. 4. Cervical polyp: it is a redundant organism protruding from the cervix due to limited hyperplasia of the glands and mesenchyme of the cervical canal, which is divided into mucosal, hemangioma and fibroma. 5. Gastric polyps: benign elevated lesions on the surface of the gastric mucosa, the treatment of gastric polyps depends on the type and size of the polyp. In addition, there are vocal cord polyps, tracheal mucosal polyps and so on. Treatment of polyps should be based on the location, clinical type, etc., and the clinician should be consulted.