Chills and fever are usually the result of the body being in a feverish state. Gastric ulcer fever may be a serious complication, such as upper gastrointestinal bleeding or upper gastrointestinal perforation, it is recommended to treat the cause of the problem, such as endoscopic hemostasis, blood transfusion, cefuroxime sodium anti-infection, surgical treatment. 1. Upper gastrointestinal bleeding: If gastric ulcer is not treated in time, upper gastrointestinal bleeding may occur with the progress of the disease, which is manifested as vomiting of bright red blood, black or tarry stools, and low-grade fever in some people. Hemostatic drugs can be injected through endoscopy, and blood transfusion can be used to replenish blood volume and fight shock when the bleeding is large. 2. Upper gastrointestinal perforation: perforation can make the contents of the digestive tract spill into the abdominal cavity, resulting in abdominal infection, manifested by fever, abdominal pain, nausea and vomiting, abdominal distension and so on. Cefuroxime sodium can be used to fight infection, and laparoscopic surgery is feasible to remove the contents of the digestive tract from the abdominal cavity and suture the perforation. Gastric ulcers with chills and fever may also be caused by peritonitis, it is recommended to go to the hospital in time. All of the above medications should be used under the guidance of a doctor, avoid self-medication.