Gallbladder stones do not necessarily cause fever, which manifests itself only when they cause acute cholecystitis or pancreatitis. Severe fever is often a manifestation of a combination of serious infections. Gallbladder stones are categorized into asymptomatic and symptomatic stones, and in fact most patients with gallbladder stones usually have no obvious symptoms. Symptoms are only noticeable when the stone becomes lodged in the cystic duct and obstructs the emptying of the gallbladder, the most typical symptom being biliary colic. Gallbladder stones can be easily infected and cause acute cholecystitis. In fact, most cases of cholecystitis are combined with gallbladder stones. In this case, the patient will have pain in the right upper abdomen, fever, jaundice and other symptoms. Fever is usually mild or moderate, and high fever with chills is often a sign of serious illness. Gallbladder stones can be discharged with bile into the common bile duct, if the stone is embedded in the hepatopancreatic potbellies can cause cholestatic pancreatitis, the patient will have severe pain in the upper abdomen, abdominal distension, nausea and vomiting, jaundice and fever and other symptoms. It is recommended that the patient should consult a doctor in time after the symptoms appear, and standardize the treatment under the guidance of the doctor.