Stretch Marks, known medically as Striae are lines or streaks on the skin, which can be pink, purple or white in colour (depending on their age), that occur when the inner skin layer is stretched thin and loses its elasticity.
Commonly occuring on the stomach, hips, thighs, back and breasts.
They are generally associated with pregnancy, obesity, bodybuilding, and, to a lesser extent, puberty.
