Bile duct stents do not have to be removed at three months. Whether the bile duct stent should be taken out after three months needs to be considered by the doctor in conjunction with a number of factors such as the purpose of the stent, the stent material, and the results of the patient’s review. 1. Need to remove: If the patient’s review has eliminated the bile duct stones, and the gallbladder is not infected, fluid and other abnormalities, and the biliary drainage is smooth, you can consider removing the biliary stent. If the applied biliary stent is made of plastic, you should consult your doctor to take it out depending on the situation, because the service life of plastic stent is shorter, usually less than 1 year. 2. No need to remove: If the biliary stent is placed for internal drainage, usually it does not need to be removed. For example, if the biliary stent is placed in patients with advanced tumors for the purpose of internal drainage and relief of biliary obstruction, in order to alleviate the patient’s symptoms and improve the quality of life, it is generally not recommended to remove the biliary stent. The biliary stent placed is made of metal, because of its long service life, usually more than 2 years, it is not required to be removed in three months. Patients who have bile duct stents placed should actively cooperate with doctors for treatment and pay attention to regular review, and ensure healthy diet and proper exercise in daily life in order to promote physical recovery.