Stretch marks - what the experts say
What is a stretch mark?
Stretch marks are striations that appear in parallel lines on the skin due to hormonal changes and/or excessive stretching. They are purplish-red at first, and then lighten gradually until they are shiny, pearly white or fleshy colored. They generally appear on the stomach, upper thighs, breasts, or hips.
Stretch marks frequently appear during pregnancy; more than half of all pregnant women experience them. However, they can also appear during puberty, in cases of obesity or rapid weight gain, after treatments with cortisone (corticoids), or in the event of certain endocrine diseases.