You can’t eat breakfast in the entry-level physical examination. Usual tests for entry-level physical examinations include blood sugar, blood lipids, liver function, kidney function, electrocardiogram, radiological examination of the chest, and ultrasound examination of the liver, gallbladder, pancreas, spleen and kidney. After eating, the fasting blood glucose test level and the cholesterol, LDL and triglyceride test levels will be affected, resulting in abnormal blood glucose and blood lipids, which will affect the entry. In addition, ultrasound examinations of the liver, gallbladder, pancreas, spleen and kidneys can be affected when performed after eating breakfast. Because the gallbladder is emptied after eating, the contrast effect of the liver and gallbladder at this time is not as good as when not eating. So you can’t have breakfast for the physical examination, and you should pay attention to a light diet a few days before the induction physical examination.