The determination of the benignity and malignancy of gallbladder polyps is very important after the discovery of gallbladder polyps, which mainly involves the question of whether they need to be treated immediately or can be left untreated and observed regularly. First of all, we need to clarify the definition of gallbladder polyps, the so-called gallbladder polyps refers to the wall of the gallbladder into the cavity of a polyp-like protrusion of the general term for a class of lesions, because clinically and imaging is difficult to clarify its nature, so also known as “gallbladder mucosal augmentation lesions”, ultrasound report for “gallbladder polyp-like lesions “This is often alarming. According to this definition, gallbladder polyps include tumor polyps and non-tumor polyps, so that pathologically there are benign polyps and malignant polyps. Benign gallbladder polyps include cholesterol polyps, inflammatory polyps, adenomatous polyps, adenomatous hyperplasia, and tissue ectopic polyps. Among them, adenomatous gallbladder polyps are potentially precancerous lesions and are associated with the development of gallbladder cancer. In contrast, non-neoplastic polyps such as cholesterol polyps, inflammatory polyps and adenomyosis of the gallbladder are not carcinogenic. However, it is difficult to accurately determine the specific pathological type preoperatively by imaging, therefore, whether a gallbladder polyp-like lesion is found to be cancerous or not mainly depends on the following aspects. (1) Size of gallbladder polyps: Most scholars have concluded that the size of gallbladder polyps is related to their benignity and malignancy. Small gallbladder polyps (<10mm in diameter) have been found to be mostly benign lesions and can remain unchanged for many years, which can be observed and reviewed by ultrasound regularly. The incidence of cancer in gallbladder polyps larger than 10mm is significantly higher than that in polyps smaller than 10mm, which should be further examined or closely followed, and operated as soon as the change; (2) the number and shape of polyps: single, low base wide polyps are mostly considered to be true polyps, that is, adenomatous polyps, which are sometimes difficult to determine in ultrasound examination, which should be dynamically observed, and if the growth rate is rapid, should Further enhanced CT or angiography ultrasound should be done to see if the polyp is rich in blood flow. If there is abundant blood flow, surgery is the best treatment. (3) Fast growth of polyps in a short period of time: Generally cholesterol polyps and inflammatory polyps are stable in size and grow very slowly even. If the polyp is solitary and grows fast in short term, adenomatous polyp or even malignant may be considered and early surgery is recommended. Whether gallbladder polyps are cancerous or not mainly depends on the pathological type of gallbladder polyps, the size, number and growth of polyps.