NEET PG DENTAL EXAM

Detailed explanation-1: -A hypertrophic scar is a thick raised scar that’s an abnormal response to wound healing.

Detailed explanation-2: -A keloid scar is an overgrowth of tissue that happens when too much collagen is produced at the site of a wound. The scar keeps growing, even after the wound has healed. Keloid scars are raised above the skin and can be pink, red, the same colour or darker than surrounding skin.

Detailed explanation-3: -Keloids result from abnormal wound healing in response to skin trauma or inflammation. Keloid development rests on genetic and environmental factors. Higher incidences are seen in darker skinned individuals of African, Asian, and Hispanic descent.

Detailed explanation-4: -Keloids and hypertrophic scars are caused by cutaneous injury and irritation, including trauma, insect bite, burn, surgery, vaccination, skin piercing, acne, folliculitis, chicken pox, and herpes zoster infection.