These mites are largely parasitic and consume blood, skin and keratin. Dust mites, which feed mostly on dead skin and hair shed from humans instead of consuming them from the organism directly, evolved from these parasitic ancestors.
Hypertrophic scar (4 months after incident) A hypertrophic scar is a cutaneous condition characterized by deposits of excessive amounts of collagen which gives rise to a raised scar, but not to the degree observed with keloids. Like keloids, they form most often at the sites of pimples, body piercings, cuts and burns. They often contain nerves and blood vessels.
This can be dependant on the nature of the scarâs cause, however, and can take upwards of a year. Causes. Speaking literally, hypertrophic scars are caused by injury, as with most scars. Common injuries or occurrences that may result in hypertrophic scars are body piercings, burns, cuts or even pimples.