Stretch marks are common during teenage, in both boys and girls. Here are some easy ways to prevent them and also take care of them if you get. 18 Jul Because teenagers are growing at a rapid pace, it is common for stretch marks to occur. Also known as striae, stretch marks occur when the. 23 Mar Stretch marks are very common as a result of growth spurts and often appear on the thighs, hips, breasts, buttocks, and abdomen of young.