People without a gallbladder at the age of 30, if they do not have other diseases combined and pay attention to adjust their lifestyles, will generally not affect their normal life expectancy. The gallbladder is a part of the human digestive system and is mainly pear-shaped, located below the liver. Its main function is to receive and store the bile produced by the liver and to pass through the common bile duct into the duodenum. Among other things, this bile helps to digest fats. Therefore, when a patient undergoes cholecystectomy, it mainly affects the normal functioning of the human digestive system and is not directly related to the survival of the human body. However, in the absence of gallbladder tissue, the following sequelae are more likely to occur, such as epigastric pain, indigestion, secondary bile duct stones, etc. It is recommended that patients after cholecystectomy must develop good living and eating habits, choose more light diet and reduce the intake of fat and cholesterol to avoid the occurrence of adverse symptoms.