Our skin is remarkable as it is strong and elastic. However, it can be damaged when the skin is stretched too much or too quickly. This abrupt change causes the dermis to rupture. As the skin heals, stretch marks or striae may appear.
Ranging in size from fine lines to thick waves, stretch marks are caused by extreme weight loss, pregnancy, or in some cases, severe pulling on the skin. They are most likely to appear where large amounts of fats are stored – like the tummy, breasts, upper arms, underarms, back, thighs, hips and buttocks.