Blood amylase testing is generally not required on an empty stomach. There is no requirement to take blood on an empty stomach because eating has little effect on the amylase value. However, after 8:00 p.m. the day before the blood test, it is not recommended to eat too spicy and stimulating food, such as hot pot, chili, barbecue, etc. It is also not recommended to smoke or drink alcohol to avoid affecting the results of the blood test and causing deviations in the values. Blood amylase is one of the most commonly used tests in gastroenterology, and is generally used to determine whether there are digestive tract diseases, pancreatic diseases or gallbladder-related diseases. If the test result is more than 2-3 times the upper limit of normal, the presence of disease is usually considered, but the specific situation needs to be clarified by abdominal CT, ultrasound and other related tests. Patients who have digestive tract, pancreatic and gallbladder diseases should pay attention to a light diet to avoid eating spicy and oily foods that may irritate the lesions and cause the disease to become more serious. In addition, it is also necessary to follow the doctor’s instructions for regular follow-up examinations to clarify the disease control and avoid disease progression.