When you think about stretch marks you probably think about a woman that is pregnant for nine months. Stretch marks are scars on the skin that are a partial tears and stretching of the skin. This excessive tension can be a result of pregnancy, obesity, growth spurts during puberty, or lifting weights. Stretch marks develop in the skin’s middle layer, which is called the dermis. The dermis is an elastic layer consisting of collagen that allows the skin to snap back into shape. When the skin is stretched over a long period of time the elasticity begins to weaken. The natural processes for the skin’s reinforcement cause an increase in the amount of collagen in the overstretched tissue, resulting in the scaring.
Stretch marks occur most often around