I discovered what those weird bumpy scar-like lines on my thighs are about a year ago, and have been haunted by their appearance and existence ever since. The truth is, everyone has stretch marks. They vary in size and colour which is why some people may not think that they have them. If you are lucky enough to be one of those people, then I envy you. I have tried moisturising daily with a body butter to try and reduce their appearance and I have tried scar serums which also claim to do so but they all failed me.