JOTI / SCIENCE PHOTO LIBRARY JOTI / SCIENCE PHOTO LIBRARY
Scar following stitches. The scar can be seen as a vertical line in the centre of the image. Stitch marks can be observed as white spots in lines either side. Scars are areas of tissue formed when the body repairs a wound. To heal lesions the body increase the production of collagen, a tough fibrous protein, to form connective tissue over the wound. To minimise the area that has to be covered, serious wounds are often stitched together.
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