Before the cesarean section operation, ultrasound examination, electrocardiogram, blood routine, blood type, coagulation quadruple test, liver and kidney function, blood glucose, urine routine, infectious disease examination, fetal heartbeat monitoring examination and so on will be done. 1. Ultrasonography: to understand the development of the fetus and the current maturity of the placenta, the amount of amniotic fluid, etc. 2. Electrocardiogram: to find out if the pregnant woman has any heart disease. 3. Blood routine: to find out whether there is anemia or infection, etc. 4. Blood type: to know what kind of blood type she has, so as to prepare for possible complications during the operation, such as hemorrhage. 5. Coagulation quadruple test: to find out whether there is any potential abnormality of coagulation function. 6. Liver and renal function: to know the condition of liver and renal function, detect abnormalities of liver and renal function in time to avoid anesthesia and surgical risks. 7. Blood glucose: to understand the blood glucose level, timely detection of diabetes and other conditions. 8. Urine routine: can find out whether there is urinary tract infection, and combined with renal function test, timely detection of renal insufficiency and other conditions. 9. Infectious disease examination: generally including hepatitis A, hepatitis B, hepatitis C, syphilis, AIDS examination, can help to find out whether there are these infectious diseases. 10. Fetal heart monitoring examination: to understand the intrauterine reserve capacity of the fetus, and timely detection of whether there is intrauterine distress and other conditions. The above tests are usually performed before cesarean section surgery, and it is recommended to consult a regular hospital for cesarean section surgery.