Why does scar protrude after injury?

Post-traumatic scar protrusion is a normal and inevitable physiological reaction in the natural healing process of wounds or wounds after human trauma, and it is also the inevitable result of wound healing process.

The essence of scar is an abnormal and unhealthy tissue that does not have normal skin tissue structure and physiological function and loses the vitality of normal tissue. Scar not only destroys the beauty of body surface, but also hinders the physiological function of related tissues or organs, and even leads to deformity.

Extended data:

Scar repair method

Repair scar with skin flap: Because skin flap contains more subcutaneous adipose tissue, it can not only be used to repair skin defect after facial scar excision, but also protect deep tissue. Skin flap transplantation is also a common method to repair surgical scars near some facial organs.

Such as alar defect, eyelid ectropion deformity and squab deformity. All of them need cosmetic plastic surgery based on skin flap transplantation. After transplantation, the color of skin flap is close to facial skin, and surgical scar repair can also be used to repair some facial tissue depression defects. In addition, skin flap has better blood supply and higher survival rate than free skin graft. Therefore, it is also a common surgical scar repair method in facial scar plastic surgery.

References:

Baidu encyclopedia-scar