Our expert says:
A scar is composed of fibroblasts, collagen, blood vessels and mucin in variable proportion. Early scars are vascular and late scars may have very few blood vessels. The blood supply of early scars may be more than in normal skin. In late scars the blood supply in scars may be even less than in normal skin. Also keep in mind that the blood supply of the scalp is more of the abdomen. Blood supply varies from area to area.
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