Gallbladder polyp is a general term for a type of lesion that is a polyp-like protrusion of the gallbladder wall into the lumen, including tumor polyp and non-tumor polyp. It is also called “gallbladder polyp-like lesion” because it is difficult to define its type clinically and on imaging. There are many types of gallbladder polyps, mainly malignant polyps and benign polyps. Malignant polyps mostly refer to gallbladder cancer or sarcoma, and of course there are other rare malignant tumors, such as lymphoma. These polyps are not likely to disappear and should be treated as soon as they are found. Benign polyps are more common in clinical practice and include cholesterol polyps, inflammatory polyps, adenomatous polyps, adenomatous hyperplasia and tissue ectopic polyps. Among them, adenomatous polyps of gallbladder are potentially precancerous and are associated with the occurrence of gallbladder cancer, which is also unlikely to disappear and should be treated by early surgery after detection. In contrast, non-tumor polyps such as cholesterol polyps, inflammatory polyps and gallbladder adenomatous polyps will not become cancerous. The clinical appearance of gallbladder polyps, and then ultrasound to find no gallbladder polyps, often it may not be a gallbladder polyp itself, it may be the cholesterol crystals of the gallbladder deposition, cholesterol crystals may fall off and discharge or dissolve, thought to be gallbladder polyps disappearing and self-healing. In summary, once the gallbladder polyp occurs, it is difficult to disappear on its own, after the discovery of the first need to determine the nature, regular follow-up review, if necessary, timely treatment.