Stretch marks (striae) are strip-shaped skin changes. Medically, they are scars caused by overstretching of the skin after the collagen-containing fibers in the tissue tear. They look like slightly raised, pale pinkish-red or brownish lines – depending on the skin type. As we age, they may fade, but remain for a lifetime.
Did you know: they do not occur equally on all parts of the body, but where the subcutaneous fatty tissue is particularly dense. Such as the chest, thighs or buttocks. In addition to a genetic weakness of the connective tissue, the following factors favor the development of stretch marks:
- Rapid volume increase (e.g.: during pregnancy)
- Strong weight gain
- Hormonal fluctuations
- Strong muscle building (bodybuilding)