Cesarean section wounds are hard when pressed, mostly due to the local scar proliferation of the incision, but can also be seen in some special circumstances, such as postoperative suture rejection, local infection or endothelial tissue ectopic, etc. may cause postoperative wound site swelling and hardness of the phenomenon, need to clarify the cause of the cause of the treatment.1, local keloid scar proliferation: after the end of the operation, in the process of wound healing, there are collagen, excessive growth of granulation tissue, resulting in scar hardness. Usually, the scar will gradually soften with time, you can use local hot compresses, scar paste and so on to inhibit the growth; 2, suture rejection: some people will have a rejection reaction to the suture, which will cause the local hardening of the incision, and sometimes accompanied by pressure and pain, or even redness, swelling and oozing. To go to the hospital in time to check, and according to the doctor’s recommendations for the next step in the treatment; 3, local infection: local infection will cause redness, swelling, inflammation and pain in the wound. At this time, you need to change the medicine in time, and even use antibiotics to reduce swelling and pain; 4, endometriosis: usually occurring 3-12 months after the operation, because the endometrial tissue in the process of the operation to the incision, causing endometriosis nodules caused by the endometrium. They can usually be removed surgically and can heal gradually after removal. If there is a hard lump in the incision after cesarean section, go to the hospital for examination to determine the cause. After the operation, pay attention to light diet, moderate consumption of food rich in protein and vitamins to promote the recovery of postoperative wounds; keep the wounds clean to prevent wound infection.