When recovering from surgery or trauma, you can’t avoid the problem of scabs. So, what is a scab? A scab is a natural covering of necrotic tissue, exudate or secretions that coagulates on or around the wound surface and acts as a natural barrier between the wound and the external environment. Scabs can take many forms and form in many ways. Blood oozes from the wound surface or the eye of a needle, dries out and covers the wound and gathers next to the line as a brown crust, which is a scab; a torn piece of skin slowly dries out and dies, forming a black armor, which is a scab; a healed incision covered with a grayish-black crust, like a crouching silkworm, like an ambrosia, which is a scab; a long-standing wound that does not heal, the pus moss turns from yellow to purple, from purple to black, and finally forms a black shield to cover the wound This is also a scab; …… In short, scabs are those things that temporarily close the wound, or soft, or hard, or gray-black, or wax yellow, or solidified and complete, or cracked and broken, all kinds of different. A scab is created by a wound and exists because of it. But scab and trauma are not the relationship of shadow and form, but the role of servant and master. The scab is always there to protect the wound. When the scab is exposed to the outside, it is like the battlefield where the commander is trapped by a great enemy, or the life where the master encounters an enemy. At this time, for the safety of the commander or master, the soldier should go forward, and the servant should protect the master with his body. The formation of scabs is actually a line of defense, a barrier on the trauma, like a servant protecting the master, to prevent the trauma from being attacked by bacteria and other environmental factors. Therefore, the scab on the wound is ugly in shape, but outstanding in merit. It is an ugly form that protects the wound and finally makes the organism noble. Under its protection, the wound heals smoothly and the organism’s sick body recovers. However, the scab is after all ugly, and even an enlightened owner would like to get rid of it as soon as possible. But the scab is as loyal as a servant to his master, and until the scab is healed, it will remain there until it believes that its protection is no longer needed. Sometimes the master, in a moment of displeasure, will cut it off from the wound, but soon afterwards, the old scab goes and the new scab comes and protects the wound again until it completes their mission. Therefore, to get rid of the ugly scabs, it is not possible to rely on the ruthlessness without grace. The best way to make these “ugly ghosts” disappear is to let the wound heal as soon as possible. However, in some wounds such as radiotherapy or tension, healing is a more difficult task, at this time, you can use measures such as hyperbaric oxygen therapy to promote healing, however, to these ugly but faithful servants, the patient should be more tolerance and patience. There is another kind of “scab”, which does not grow on the incision or wound, but adheres to the incision or around the wound. This “scab” has the name of a scab, but not the reality of a scab. It accompanies the scab of the incision or wound and is caused by dust, foreign bodies, etc. deposited around the incision or wound due to long-term lack of cleaning. This “scab” not only fails to protect the wound or trauma, but also harbors dirt and becomes a potential risk of wound or trauma infection. It is important to prevent the formation of such “scabs” and to remove them early. Thorough cleaning around the wound and wound area is the primary method to achieve this. Although scabs are beneficial to a wound or trauma, some special circumstances do exist that require painful removal. The most common situation is an infection under the scab. In this case, instead of protecting the wound, the scab becomes a shelter for pathogenic bacteria, and if it is not removed, the infection will be difficult to control and aggravate the wound damage. Therefore, the scab that has formed underneath the infection should never be tolerated, since it has become an accomplice of the enemy, it should be completely removed by the foreigners through measures such as changing medication to control and destroy the infection in order to form a new scab defense.