It takes at least 42 days after a cesarean section before you can start having sex, and the exact time varies from person to person. After a cesarean section, in order to prevent the wound from splitting open, and at the same time the body tissues and organs, especially the uterus also need some time to repair, the puerperium period is often 42 days, and it will take 5-6 weeks for the bad mucus to be completely drained off, so it takes at least 42 days to have sex after a cesarean section. During the postpartum checkup, after a thorough examination by the doctor, you can start having sex after the uterus, vagina and uterine incision have recovered well, but this time is not absolute. For women who are in good health and have a strong ability to recover, they can start having sex earlier; however, for some women who have a weak ability to recover, it may take a longer time to recover. After a cesarean section, it is best to seek medical advice before starting sex, and if any abnormalities occur, seek medical advice promptly.