To determine whether the wound will leave a scar or not, you need to make a comprehensive judgment through the individual’s physical condition, the depth of the wound, infection and other factors. 1. Personal constitution: Personal constitution is a very important factor. If a person has a scarring problem, then any nature of the wound healing process may form a scar. 2. Wound depth: The depth of the wound will affect the scar. Under normal circumstances, when the wound is shallow, does not damage the deeper layers of the dermis, and is not infected, scar formation is unlikely. If the wound is deeper than the deeper layers of the dermis, it will not allow a scar to form. 3. Infection: If there is an infection, then the wound healing scar is generally more obvious, so usually must strengthen the wound cleaning, sterilization. As long as no infection occurs during the wound healing process, the chance of scar formation will decrease. Therefore, you should go to the hospital in time for formal treatment to heal the wound as soon as possible and reduce scarring.