The only similar condition of a keloid is a Hypertrophic Scar:
| Hypertrophic Scar | Keloid |
| Hypertrophic scar occurs when the wound heals and tend to be redder and may subside by themselves within few months. | Keloid continues to grow in the normal area. |
| Usually there is a history of previous trauma or injury | There may or not be any history of injury present |
| They do not spread beyond the scar. | They spread beyond the scar many centimeters and requires treatment. |
