So, for a couple of years now I d have these lines in my outer and inner thighs and just at the hip. I don t THINK they re stretch marks . On my skin they re kind of white, and not bumpy, but more like lined in, like a scar , but not exactly. I m not sure how to explain it. Anyway, I ve been told it might be because of fast gain weight or loss of weight, but is there a way to get rid of them?