Many expectant mothers will choose caesarean section to welcome their new life, have sexual pain, worry about dystocia and want to keep fit. However, when the joy of many women who are new mothers by caesarean section is a little slow, the ugly scar on their stomachs becomes the most painful in their hearts! Many women often wonder when they look at the scar on their stomachs in the mirror. Why is the scar of a friend's caesarean section so beautiful, but his own scar is ugly? Why is the scar of the first child lighter and the scar of the second child worse? I even doubt that doctors are good. In fact, most scars of caesarean section can be stitched beautifully, and even some scars look like a thin line. I believe many women have heard that caesarean section will look better, but straight cut will be ugly. In fact, as long as there is a surgical wound, it will leave a scar, and straight cutting will definitely be ugly. If expectant mothers want to avoid ugly postpartum scars, they must first understand the basic concepts of scar formation and prevention. In the process of scar formation, once the skin has a wound, the human body will begin to heal automatically. There are two mechanisms for wound healing. If the wound is in the epidermis, the human body will create the same cell tissue to fill it without leaving a scar. But if the wound goes deep into the dermis, in order to prevent the wound from splitting, the skin will produce strong scar tissue to effectively connect the wound. Within three to six months after injury, scar tissue will proliferate, which is called proliferative phase. During this period, the human body will proliferate tiny blood vessels near the wound to supply nutrition for the scar tissue. So the early scar looks red and convex, and feels like a rope. If the healing process is smooth, it will enter maturity after the proliferative phase, and the mature scar will fade, flatten and soften, with an average time of three to six months. However, whether in the proliferative phase or mature phase, scar tissue will be constantly updated according to the environment. It is not only a mass of meat on the wound, but also a living and changing tissue, so the treatment of scar must be aimed at the cause, not static. The two major factors that determine the beauty of scars and the two most important factors that determine the ugliness of scars are physique and tension. Physically, the most famous disease is swollen crab feet, which is related to heredity. Once there is a wound on the body, the scar will proliferate and expand like a tumor. So far, there is no very effective treatment. The darker the skin color, the easier it is to leave scars, which is also a physical factor. Besides physical fitness, nervousness is the main factor affecting the beauty and ugliness of scars. Tension can be said to be the strength of wound opening, and the amount of scar tissue is directly proportional to tension. The greater the tension, the greater the tendency of wound cracking. When the human body senses this tendency, it will create a lot of scar tissue in an attempt to connect the wounds. The greater the tension, the more scar tissue will be produced, that is, we will see ugly scars that are red, convex and hard. What factors will affect the tension? The most important thing is the direction of the wound When the wound direction is parallel to the skin line, the wound tension is the smallest. As long as it is stitched properly, the scar is often just a faint thin line, hidden in the skin lines and almost invisible. On the contrary, if the incision direction is perpendicular to the lines of the skin, the tension of the wound is the greatest and the scar left is the most obvious. In addition, the tension of scar is also related to the wound site, and the activity frequency is high, such as near the joint and around the mouth. Because of frequent activities, the wound is easy to crack, that is, the tension is high, so the scar tissue in these parts will be particularly large and particularly thick. In addition, the prominent parts of the human body, such as the upper arm (especially the arm of obese people) and the belly (such as the beer belly of men or the protruding abdomen of women), are also areas that are easy to cause ugly scars. In the process of scar formation, if the wound is in an unstable state due to infection or foreign body entry, then the human body will automatically create more scar tissue to try to stabilize the wound, and the scar will easily deteriorate and become ugly. After understanding the principle of scar formation, it is quite easy to analyze why caesarean scar has the distinction of beauty and ugliness. The natural lines of the lower abdomen skin are horizontal, so the tension of the transverse wound is the smallest, and the scar will look better after suture; The direct cut wound has the greatest tension, and the scar will naturally be more ugly than the transverse cut wound. Generally speaking, most obstetricians and gynecologists now choose crosscutting. As long as the suture technique is good and there is no special physique, the scars are beautiful. Unless there is dystocia or emergency, in order to enter the pelvic cavity quickly, the doctor will choose to perform laparotomy directly. At this time, in order to save the lives of mother and son, of course, the beauty and ugliness of scars can be ignored. Some pregnant women will find that the scar of their second child by caesarean section is much uglier than that of their first child. This is because women who are in love with a second child often take it lightly and supplement it excessively, or because the abdominal muscles relax after multiple pregnancies, which will cause the lower abdomen to protrude and increase the tension of the wound, and the scar is particularly obvious. Many ignorant mothers will blame the second doctor for not sewing up the wound. This is really a great injustice! Others, such as swollen crab feet, postpartum wound infection, or women's rejection of subcutaneous suture, will be ugly. For a long time, medical research has confirmed that stress is the best way to prevent scar hyperplasia. As long as the scar is pressed in the proliferative phase so that it does not bulge and thicken, it can accelerate the maturity of the scar. But this pressure must be uniform and continuous, and the sooner it is used, the better. It is a simple and convenient choice to use cosmetic tape to dress the wound after surgical suture. In order to be eager for success, many pregnant women often follow the advice of relatives and friends or mistakenly believe exaggerated advertisements and apply scar cream and other drugs. In fact, these things have no real effect. If there is no effective and lasting pressure during the wound suture period, it will be too late to wait until the scar is formed, so you don't want to leave ugly postpartum scars. Prevention is the most important principle. What should I do if the ugly scar has been formed? There are many specious treatments on the market, such as not eating soy sauce, laser scarring, peeling, fruit acid skin changing and so on. In fact, the second operation is the most effective way to solve ugly scars. Because only surgery can change the tension that causes ugly scars, other methods, such as laser, can shrink immature scar blood vessels, accelerate scar maturity and eliminate scar redness, but they can't remove scars or reduce scar area. Carbon dioxide laser can vaporize scar tissue, but as mentioned before, scar is living tissue. Skin grafting, like carbon dioxide laser, may temporarily smooth the raised scar, but this second-degree injury will make the scar tissue rebound more violently, which is counterproductive. As for fruit acid skin replacement, it can only improve some shallow scars, and the effect is not significant. To beautify ugly scars, we should treat them according to the causes of scar formation. For ugly scars or hyperplastic scar tissue caused by infection and foreign bodies, plastic surgeons can cut and sew the scars. If it is a straight scar, we can redesign the incision in different directions and angles to disperse the tension of the straight wound. These curved wounds will blur the visual focus when combined with the tissues around the skin, so as to beautify the scar. Many people hold back because they are afraid of the pain of surgery. In fact, scar repair surgery can be completed within an hour as long as it is locally anesthetized. Under the skillful hands of cosmetic surgeons, the effect, pain, recovery speed and postoperative care of surgery are far better than other methods. The ugly scar caused by abdominal bulge is difficult to deal with. This problem can often be avoided if there is no excessive tonic before and after delivery and proper exercise after delivery. But if it does happen, the best way is to do liposuction or abdominal plastic surgery first, tighten the fascia of abdominal muscles to restore tension, then remove excess skin and re-sew the wound with the minimum tension, so that the ugly scar and figure after delivery can be greatly improved at the same time.