How Stretch Marks Form
Stretch marks, medically known as striae, occur when the skin stretches or shrinks too quickly. This sudden change causes the supportive fibers of collagen and elastin to rupture, leaving behind visible lines or streaks. They often appear during pregnancy, puberty, or rapid weight fluctuations. While stretch marks are not harmful, many people feel self-conscious about their appearance. Professional treatment can help fade and smooth their look, supporting healthier and more even-toned skin.