i never noticed that i'd ever had any before, but i noticed recently some very thin white scars on my hips and they look like they could have been stretch marks...?
As for getting rid of them, i don't think you can but they will definately fade in time
stretch marks may fade slightly over time to those silvery lines you get, but they wont completely go away. The oils and stuff work best as prevention, to improve the elasticity of the skin but they dont make stretchmarks disappear. Only some kind of laser thing can do it apparently