Under normal circumstances, the gauze after amniocentesis can be removed 24 hours after the procedure. Amniocentesis is mainly used to rule out fetal malformations and chromosomal abnormalities, and the eye of the puncture needle is small. If you want to protect the needle eye from infection, you can remove the gauze 3-5 days after surgery. If there is redness and swelling of the needle eye, abdominal pain, abnormal vaginal discharge, etc., it indicates a possible infection and should be promptly seen by the obstetrics department of the hospital. After amniocentesis, it is necessary to sit still for 2 hours, avoid bathing for 3 days, avoid prolonged walking, standing and overexertion for 7 days, avoid sexual intercourse for 2 weeks, and pay attention to rest and nutrition at home. 2-3 days after the puncture, you should go to the obstetrics department of the hospital to check whether the fetal heartbeat and fetal development are normal.