Pre-operative examinations for IVF technology include: routine examinations: blood and urine routine; ABO blood group, RH blood group, hepatitis B series, hepatitis C, HIV, syphilis, liver function; gonococcus, chlamydia; male partner: semen analysis, sperm malformation rate, semen leukocytes, AsAb; female partner: coagulation series, renal function, blood glucose, AsAb, endocrine complete set (blood sampling on day 2-3 of the cycle), white belt routine Among them: infectious disease series examination: syphilis, HIV, hepatitis B series, hepatitis C examination is valid for six months, blood and urine routine is valid for one month, white belt routine is the result of the month of pregnancy assistance, except for blood type, other examination results are valid for one year; if there are special circumstances, examination will be conducted at any time. Special tests: The doctor will arrange some necessary special tests according to your specific situation. Routine semen and sperm malformation rate, ultrasound must be checked in our hospital, other can be checked in local hospital.