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.
If someone in your family has keloids then you are at increased risk. A hypertrophic scar looks similar to a keloid. Hypertrophic scars are more common, but they don't get as big as keloids and often subside by themselves (a process that can take up to one year or more). They occur in all racial groups. A hypertrophic scar remains within the length of the original wound.