Stretched scars occur when the skin around a healing wound is put under tension during the healing process. This type of scarring may follow injury or surgery. Initially, the scar may appear normal but can widen and thin over a period of weeks or months. This can occur where the skin is close to a joint and is stretched during movement or may be due to poor healing due to general ill health or malnutrition.
Stretch marks develop when the skin is stretched rapidly, for example during pregnancy or the adolescent growth spurt. Initially, stretch marks appear red but become paler over a number of years.