Entry physical examination how to be considered unqualified generally has no specific provisions, mostly engaged in the industry, different positions have a relationship, such as the food industry, high-altitude industry, and so on. 1. Food industry: the requirements of infectious diseases is relatively high, the entry physical examination with infectious diseases is generally considered unqualified, such as hepatitis B, hepatitis C, hepatitis A, bacillary dysentery and other diseases. 2. High-altitude work: high-altitude work is prone to dangerous conditions, generally on heart disease, high blood pressure and other diseases have requirements. If you have heart disease or high blood pressure during the physical examination, you will be regarded as failing the physical examination. Three days before the entry physical examination, try to maintain a normal diet, avoid overeating, pay attention to rest well, do not drink and eat high-fat, high-protein food, physical examination on the day of the physical examination before the food and water ban, so as not to affect the results of the physical examination. After the physical examination, if you find any discomfort in your body, you should consult the doctor in time and take active treatment so as not to miss your condition.