Many people believe that the gallbladder is an important organ that secretes bile, and without it, there would be no bile in the body. Therefore, removing the gallbladder will have a great impact on the digestive function. In fact, this is a misconception of the common people!!! This misconception is very common. This misconception actually includes the following three aspects: First of all, bile is not secreted by the gallbladder, but by the liver. The main role of the gallbladder is to store and concentrate the bile secreted by the liver, and when eating, the gallbladder will reflexively discharge the bile in it into the intestine to participate in the digestion and absorption of food. It can be seen that the gallbladder is just a collection and distribution site for bile, similar to a reservoir. It is not wise to treat gallbladder stones by removing the stones without removing the gallbladder. A gallbladder with stones, regardless of the severity of the gallbladder itself, has a high probability of developing stones again in the future. Especially if the gallbladder has a long history of stones, the gallbladder has often lost its function of storing, concentrating and excreting bile, so preserving a diseased gallbladder is equivalent to preserving a lesion, which makes it more likely to develop stones again in the future. Furthermore, the surgery to preserve the gallbladder and remove only the stones is more complicated than cholecystectomy. After removal of the gallbladder, bile flows slowly into the duodenum directly through the common bile duct. Because of the lack of concentrated bile draining into the bile duct after meals, there is a certain impact on the high-fat and high-protein diet in the near future after surgery, which is more significant for those who eat large amounts of food at each meal (such as young adults and agricultural workers). After three months, there is a slight dilatation of the bile ducts, which corresponds to a compensatory effect on the storage function of the gallbladder, and the effect on the digestive function becomes seemingly negligible. In our follow-up observations of people who underwent gallbladder stones before the age of 30, the vast majority were able to resume their pre-operative diet three months after surgery, with little difference in digestive function before and after surgery.