Dd2 is 12yo and is developing stretch marks on her thighs and lower bottom area, also on the outside back of her knees. She's growing but not at a phenomenal rate, she's about 5ft and 6st, and is thin. Why is she getting stretch marks and is there anything I can do to help reduce/prevent them?
She isn't that bothered about them and dd1 also had them but to a lesser degree. But I only got them when I was pg so don't understand why dd is getting them at 12.