Scar Classifications

Scars are classified six different ways

Mature Scar, which means it, is a light-colored, flat scar.
Immature Scar, which is red, sometimes itchy or painful, and slightly elevated scar in the process of remodeling. Many of these will mature normally over time and become flat, and assume a pigmentation that is similar to the surrounding skin, although they can be paler or slightly darker.
Scars may be linear hypertrophic, for example a surgical or traumatic scar. A red, raised, sometimes itchy scar, confined to the border of the original surgical incision. This usually occurs within weeks after surgery. These scars may increase in size rapidly from 3-6 months and then, after a static phase, begin to regress. They generally mature to have an elevated, slightly rope-like appearance with increased width, which is variable. The full maturation process may take up to 2 years.
Widespread hypertrophic scar, for example a burn is a widespread red, raised, sometimes itchy scar that remains within the borders of the burn injury.
Minor keloid scar is a focally raised, itchy scar extending over normal tissue. This may develop up to 1 year after injury and does not regress on its own. Simple surgical excision is often followed by recurrence. There may be a genetic abnormality involved in keloid scaring. Typical sites include earlobes.
Major keloid is a large, raised (>0.5cm) scar, possibly painful or pruritic, and extending over normal tissue. This often results from minor trauma and can continue to spread for years.