Stretch marks, or striae, are a form of skin scarring associated with pregnancy, obesity, puberty, and short-term weight gain from bodybuilding and other physical activities. They form when the dermis – the middle layer of the skin that maintains shape and elasticity – is stretched more than it can tolerate. Connective fibers in the skin eventually break, disrupting collagen production and causing scarring. This scarring may be treatable only through stretch mark removal.Many women who have stretch marks after pregnancy turn to laser stretch mark removal to eliminate this unwanted scarring. This treatment is designed to give women the renewed, youthful appearance they desire.