Images of a fine line scar (upper right), a hypertrophic scar (lower right), a raised dermal scar (upper left), and a keloid scar (lower left). Credit: G. P. Sidgwich, D. McGeorge, A. Bayat, A comprehensive evidence-based review on the role of topicals and dressings in the management of skin scarring. Arch. Dermatol. Res. 307, 461-477 (2015).
Read about using NanoFlares to detect the cells that cause excessive scarring:
N. R. Gough, Scar-Detecting Nanoparticles. BioSerendipity (9 May 2018) https://www.bioserendipity.com/scar-detecting-nanoparticles/