The human body is covered with skin, which acts as a protective barrier. Scars are formed after a skin injury or surgery. Scars that grow on important areas (face, joints, etc.) are not only ugly but also interfere with function. Unfortunately, however, scar tissue cannot be completely removed and plastic surgery can only minimize and fade the scars as much as possible. Scar revision surgery is best performed after the wound has healed for 3-6 months, during which time medications (such as topical corticosteroids, pain relieving creams and antibiotic ointments) can be used to reduce the itching and other symptoms caused by scars. A keloid is a type of scar tissue that has an infinite tendency to grow in color and texture unlike a scar, and also extends beyond the wound and has a tendency to recur. Removal of the keloid alone usually results in recurrence after surgery. Some contracture scars can lead to movement disorders of muscles, joints and tendons. A “Z” incision is made because the “Z” shape is closer to the normal skin folds and the scar is smaller and less visible.