Scars may develop by accidents or surgeries being unpredictable as it all depends upon the size and depth of the wound. Through injections and certain steroid medications, the scars can be revised or going through surgery where they might go lighter in appearance as before. Depending upon the type and size of the scar the surgery is done on the patient requiring a healing process advising to gradually join back to work. This process is also called Z plasty, scar repair, keloid revision, etc.