The main component of gallstones is cholesterol, a lipid that is soluble in bile and insoluble in water. When bile fails to dissolve all the cholesterol secreted by the liver, too much cholesterol precipitates out and forms crystals, which accumulate and calcify to form gallstones. Gallstones can be caused by a variety of factors, including diet, physical condition, disease, and heredity. Most stones are asymptomatic and are only detected during an examination. If the stones are not larger than 2 centimeters and are asymptomatic, they can be monitored by having an ultrasound once every six months, but if the stones are found to be increasing rapidly during a follow-up examination, surgery is needed to prevent serious complications. Most of the symptomatic stones are pain and discomfort in the right upper abdomen, especially when eating greasy food can be triggered. Some severe cases may cause chills, high fever, and jaundice. It is best to treat symptomatic stones with timely surgery. If you find gallstones, you must go to the hospital specialist, complete the specific examination, and then let the doctor according to the specific situation to develop treatment.