Gallbladder polyp, also known as gallbladder polypoid lesion or gallbladder augmentation lesion, is a general term for a limited polypoid augmentation lesion protruding into the gallbladder, which is generally divided into two categories: 1. Tumor polypoid lesions: including adenoma and adenocarcinoma. In addition, such as hemangioma, lipoma, smooth muscle tumor, neurofibroma, etc. are rare. 2. Non-neoplastic polypoid lesions are mostly of this type. Commonly, such as inflammatory polyps, cholesterol polyps, adenomyotic hyperplasia, etc. In addition, such as adenomatous hyperplasia, yellow granuloma, ectopic gastric mucosa or pancreatic tissue, etc. are also rare. Ultrasound and CT examination can be diagnostic, especially ultrasound examination has a high diagnostic rate, but it is difficult to confirm whether the lesion is tumorigenic or non-tumorigenic, benign or malignant. It is often necessary to provide reference for diagnosis and treatment based on imaging performance and further understanding of the following points: ①, polyp size and growth rate, those with diameter greater than 1 cm or rapid increase in size within a short period of time have a high possibility of malignancy; ②, number, multiple often non-neoplastic polyp-like lesions such as cholesterol polyps, adenomas or carcinomas are mostly solitary. ③, shape, papillary and elongated tip are mostly benign, while those with irregularity, wide base or local gallbladder wall thickening should be considered malignant. ④, site, adenomatous hyperplasia preferably occurs at the bottom of the gallbladder, located in the body of the gallbladder and suspected malignant polyp-like lesions, easy to infiltrate the liver, should take a positive attitude to treatment. ⑤, symptoms, those who have symptoms consider surgery. The principle of treatment for gallbladder polyp-like lesions is that benign ones can be observed on a regular basis and then treated according to the development of the disease. Those who are suspected of malignancy or have obvious clinical symptoms should have their gallbladder surgically removed. Therefore, for polyp-like lesions larger than 1 cm, especially those with a single tip, those with rapid enlargement within a short period of time, those with gallbladder stones or obvious clinical symptoms, and those with suspected malignant or malignant lesions on imaging, surgery for cholecystectomy is recommended, and those with confirmed gallbladder cancer are treated as gallbladder cancer surgery.