Many post-operative patients, “talk about sarcoid”, because some people are repaired again because of this. After going through the pain of surgery, it is easy to relax, but it is hard to avoid worrying and fearing when you have to move the knife and cut again. What is a sarcoma? Do sarcomeres have a role to play? When do they need to be trimmed? Is there a way not to trim? Here we will answer these questions one by one. 1.What is a sarcomere? The fresh meat in the process of wound repair The “granulation” in our mouth actually refers to the “granulation tissue”. Granulation tissue is the newborn capillary-rich fibrous connective tissue that is formed to replace necrotic tissue in the process of tissue injury. Granulation tissue is an essential tissue in any wound repair process. To the naked eye, the surface of granulation tissue is finely granular, bright red, soft and moist, easy to bleed without pain when touched, and resembles tender flesh, hence the name “granulation”. The granulation tissue often contains a certain amount of edema fluid, so it appears to be tender, and sometimes it rises up to the plane of the wound. The granulation tissue contains abundant capillaries with thin walls, so a small amount of blood may also ooze when gently touched during the dressing change. However, the granulation tissue does not contain nerve fibers, so even if touched, the pain is not obvious. 3.The role of granulation Picking up the pieces Granulation tissue has an important role in the process of tissue damage repair. (1) anti-infection to protect the wound; (2) fill the wound and other tissue defects; (2) mechanize or wrap necrosis, thrombus, inflammatory exudate and other foreign bodies. Therefore, the growth of granulation tissue is a normal process in the postoperative recovery of anorectal surgery. 4. End of granulation Formation of scar Granulation tissue can start to appear within 2 to 3 days after tissue injury to fill the wound or mechanize foreign bodies. Over time, granulation tissue matures in the order of its growth. Water absorption decreases with maturation, inflammatory cells decrease and gradually disappear, and capillaries become occluded and decrease in number. Eventually the granulation tissue matures into fibrous connective tissue and transforms into scar tissue. 5. Abnormal granulation Overgrowth Sometimes, granulation can also be edematous and overgrown. It appears to protrude from the wound, bleeds extremely easily, and is extraordinarily fragile. This can often be seen in some postoperative wounds of anal diseases. This is an abnormal granulation, called “pterygium” in Chinese medicine, which can cause non-healing or slow healing of the wound, or in some cases, pseudo-healing. The causes are: (1) oversized wounds, such as large abscesses and post-operative fistulae; (2) excessive tension in the wounds, such as fissures and post-operative cricoid hemorrhoids; (3) weak individuals; (4) blind use of medications to promote healing; (5) local impermeability, moisture, and excessive use of oily medications; and (6) treatment of abnormal granulations. In order to promote faster and better wound healing, abnormal granulation needs to be treated. 1. Compress oiled gauze strips during dressing changes on larger wounds. 2.Clean, change the excipients in time depending on the amount of secretion and try to keep the area relatively dry. 3.Use 20% concentrated sodium chloride to wet dress the wound. 4.Concentrated saline or alum water sitz bath. 5.Protruding or turning out the trauma of the granulation will need to be trimmed in time.