Hypertrophic scar

Introduction After the skin damage has healed, the scar continues to proliferate and develop into a hypertrophic scar. Hypertrophic scars protrude from the skin, irregular in shape, uneven, flushed and bloody, and firm in texture. It has a burning and itching sensation, which is exacerbated by increased ambient temperature, emotional agitation, or eating spicy and irritating food. Proliferation often lasts for a few months or a few years before the degenerative changes occur, manifested as a decrease in the height of the protrusions, darkening of the color, remission of the blood, and softening. Some can eventually calm down, and the symptoms of itching are greatly reduced or disappeared. Hypertrophic scars occur in the depth of the lesion only in the dermis, such as deep 2 degree burns and cuts of thick medium thickness slices of the donor site, occasionally seen in deeper wounds and surgical incisions.

Cause

Local factors, including foreign bodies, inflammation, traction, etc. Foreign objects, such as dust, talcum powder, cotton fibers, knots and certain chemicals falling into the wound. In addition, there are keratin precipitated after cell destruction. Inflammation, such as long-term naked infection before wound healing, excessive growth of granulation tissue, recurrent infection caused by residual hair follicles or glandular tissue wrapped in scar after deep burn wound healing. Pulling, such as consistent with the skin's natural texture, wrinkles, or scars at the joints, is constantly being pulled, or even broken, and then repeatedly ruptured and healed. Stimulation of these local factors can lead to the proliferation of scars.

Systemic factors, such as young adults, women, especially pregnant women and hyperthyroidism patients are prone to hypertrophic scars, and rarely seen in the elderly, which may be related to the secretion of estrogen and exudates. In addition, factors such as race, heredity, and physical quality are also related to scar hyperplasia, but the exact mechanism remains to be elucidated.

an examination

Related inspection

Skin color skin elasticity check

After the skin damage has healed, the scar continues to proliferate and develop into a hypertrophic scar. Hypertrophic scars protrude from the skin, irregular in shape, uneven, flushed and bloody, and firm in texture. It has a burning and itching sensation, which is exacerbated by increased ambient temperature, emotional agitation, or eating spicy and irritating food. Proliferation often lasts for a few months or a few years before the degenerative changes occur, manifested as a decrease in the height of the protrusions, darkening of the color, remission of the blood, and softening. Some can eventually calm down, and the symptoms of itching are greatly reduced or disappeared. Hypertrophic scars occur in the depth of the lesion only in the dermis, such as deep 2 degree burns and cuts of thick medium thickness slices of the donor site, occasionally seen in deeper wounds and surgical incisions.

Differential diagnosis

1, contracture scar

Clinically common deformities caused by scar contracture include valgus valgus, lip valgus, chest-thoracic adhesion, hand scar contracture deformity, and flexion or extension of the joints. Among them, the cord-like scar contracture in the flexion of the joint, for a long time, the skin and subcutaneous tissue on both sides of the contracture scar can gradually elongate, becoming a scar-like scar contracture, called a scar contracture scar. Such larger scars are common in the anterior neck, axillary fossa, elbow fossa, ankle joints, etc., and the smaller ones can be found in the medial malleolus, external malleolus, nasolabial fold, mouth, finger, etc. The opening of the body cavity is annular, causing its narrow diameter and affecting normal function.

2, blemish scar

Scars to scorpion, shaped like duck plague. Such scars occur in the flexion of the joint, and can also be seen in the opening of the lumen of the organ, such as the mouth, nostrils, urethra, vaginal opening. A scar-like scar is actually a characteristic manifestation of scar contracture in the above-mentioned special parts.

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