Scars are a heterogeneous entity, with varying appearances, associated symptoms, and psychosocial impacts specific to the person who carries them. Scars also change over time due to the normal maturation process, abnormal inflammation, repeat trauma, or as a result of therapeutic intervention. Systematic evaluation of scars is therefore necessary to document scar status and track changes over time, while also facilitating communication between healthcare providers and allowing for comparisons between scars/patients. Many scar assessment tools have been developed to fulfill these needs.