The role of the gallbladder is to store bile, concentrate bile, and excrete bile; its function is to participate in the body’s digestion and absorption. The gallbladder is a hollow organ, after the liver secretes bile and excretes it into the gallbladder, the gallbladder can store bile and excrete it into the duodenum through the bile ducts when the body needs to digest, and the gallbladder’s function of storing bile can play a certain buffering effect on the pressure of the biliary tract. Unexcreted bile is stored in the gallbladder, which can concentrate the weakly alkaline bile into brownish-yellow or dark-green bile, which is weakly acidic at this time, and its function is further enhanced. After eating, food will stimulate the duodenum and then contract the gallbladder to promote the excretion of bile and help the digestion and absorption of fat, so the gallbladder is the body’s digestive organs. At the same time, the wall of the gallbladder can secrete mucus every day to protect the gallbladder from bile corrosion and infringement.