Hereditary??? Lol, you're an idiot! show me a study on stretch marks being hereditary, over 50% of pregnant women that had stretch marks there mothers did also, so that means around 40% of ladies got stretch marks when their mothers didn't have them! And this is for women!!! Your not a woman, if ur mum doesn't get them it doesn't mean you won't! I have them and my mother doesn't?Originally Posted by Konnann