Bile duct polyps are generally benign. A comprehensive evaluation is needed based on the size, location, and severity of the polyp. The gold standard is usually the postoperative pathologic findings. In general, most polypoid lesions remain quiescent, do not grow significantly, do not cause significant clinical symptoms, and have no significant impact on the patient’s health. However, when the diameter of the polyp is more than 1cm or the volume grows too fast in a short period of time, the chances of malignant changes will increase, so it is important to pay attention to timely surgical treatment. It is recommended that bile duct polyps to the hospital in a timely manner, usually pay attention to regular review, check the liver and gallbladder ultrasound. Daily life should pay attention to low fat, low cholesterol.