What are the effects of having sex 42 days after a cesarean section?

　　The impact of resuming sexual intercourse 42 days after cesarean section varies from person to person, primarily depending on the recovery status of the uterus, abdominal wound, and overall physical condition. Individuals who have recovered well may experience no obvious discomfort, while those with inadequate recovery may encounter issues such as abdominal wound pain or dehiscence, increased risk of reproductive system infections, impaired uterine recovery, vaginal discomfort or injury, and psychological distress. A detailed analysis is as follows:

　　1. Abdominal wound pain or dehiscence: If the surgical incision has not fully healed, physical movements during intercourse may pull or press on the wound, causing significant pain. Improper force may even lead to wound dehiscence or bleeding. Superficial skin healing does not necessarily indicate complete repair of deeper tissues; individuals with scar-prone constitutions tend to have slower wound healing and face higher risks.

　　2. Increased risk of reproductive system infection: If the cervix remains open and the endometrium has not fully repaired by 42 days postpartum, bacteria can easily enter the uterine cavity through the vagina during intercourse, leading to endometritis, pelvic inflammatory disease, etc. Symptoms include increased vaginal discharge with odor, lower abdominal heaviness and pain, and in severe cases, fever.

　　3. Impaired uterine recovery: The uterus that has not fully involuted is relatively fragile. Stimulation during intercourse may cause abnormal uterine contractions, prolong the duration of lochia discharge, or even result in intrauterine hematoma, interfering with myometrial repair and hindering the restoration of uterine function to its pre-pregnancy state.

　　4. Vaginal discomfort or injury: Postpartum estrogen levels are low, resulting in thinning of the vaginal mucosa, reduced elasticity, and decreased secretions. Friction during intercourse can easily damage the vaginal mucosa, causing pain and bleeding. Excessively vigorous movements may worsen the injury and increase the risk of infection.

　　5. Psychological distress: Negative experiences such as pain or bleeding during intercourse may lead the mother to develop fear or resistance toward sexual activity, affecting marital quality of life. Some mothers may also feel anxious about their physical recovery, which could negatively impact postpartum mental health.

　　A postnatal checkup should be completed at 42 days postpartum to confirm proper wound healing and adequate uterine involution before resuming sexual intercourse. Movements should be gentle, and good hygiene practices must be observed. Any discomfort should prompt immediate cessation. Adequate rest and nutritional support in daily life are essential to promote comprehensive recovery.