Laboratory tests to be completed by infertile couples before IVF treatment: Male partner 1. Semen routine; semen culture for mycoplasma and chlamydia; abnormal results need to be repeated 2-3 times, genital ultrasound and sex hormones need to be checked for abnormal semen. 2. Blood test for syphilis (RPR), HIV, liver function, hepatitis B, hepatitis B DNA, hepatitis C, blood type, chromosome. Female 1. Blood test for sex hormones (FSH, LH, E2, T, PRL), TSH, AMH, blood count, coagulation series, liver and kidney function, fasting glucose, hepatitis B half, hepatitis B DNA, hepatitis C, syphilis (RPR), HIV, blood type, chromosomes on the third day of menstruation. 2. Non-menstrual examination of routine white belt, white belt culture of mycoplasma, chlamydia and gonococcus, cervical smear, urine routine. 3. Ultrasound of our uterus and adnexa, orthopantomogram of the chest, electrocardiogram. Three certificates: ID card of both parties, marriage certificate, birth certificate or certificate of not having a child (issued by the family planning agency, with a fixed telephone number of the family planning office)