Granulation tissue does not disappear but it transforms and exists in another form in the affected area of the body. Granulation tissue is made up of capillaries and various types of fibroblasts, which have the function of protecting the wound, filling in the wound, and including foreign bodies and necrotic material in the wound. The granulation tissue appears a few days after the injury to fill the wound, and when the wound stops bleeding, the granulation tissue matures into fibrous connective tissue, which is further transformed into scar tissue, which remains in the affected area of the wound as well as the final result. With the passage of time, the scar tissue will slowly become lighter and less obvious, congenital keloid people will be particularly obvious in this step, will be more sensitive, so a large amount of scar tissue will be formed.