Since the radiation treatment process of gallbladder cancer causes certain radiation to the normal tissues at the edge of the tumor, it causes many uncomfortable symptoms to patients. The possible side effects of radiotherapy for gallbladder cancer are as follows: 1. Liver function damage: when radiotherapy irradiates the gallbladder area, it will inevitably partially irradiate the liver, which usually causes elevated transaminases, mainly indirect bilirubin. If patients are given active hepatoprotective treatment, it can be completely relieved. 2. Acute nausea and vomiting: Radiation therapy inevitably causes certain radiation to the stomach and duodenum, resulting in acute nausea, vomiting and other gastrointestinal reactions. If patients are given antispasmodic, acid suppression and gastric preservation treatment, they can generally be relieved; 3. Such symptoms will be relieved within one week after radiotherapy if the patient is given symptomatic supportive treatment to raise platelets and leukocytes.