Having excess weight in the thighs, make you to experience lower self-esteem. But no need to worry, you can slim down your thighs and gain back your self-confidence. Before you set about trying to slim down your thighs, you need to establish whether you have big thigh muscles or a lot of thigh fat. If you want to test whether your thighs are fat or thin, just do this simple test. First straighten your legs and tighten your thigh muscles. Now Pinch the fat and skin of the thigh. If there is much to pinch, that means your thighs big and you have fat. And if there is little to pinch, means that you have large thigh muscles and little fat.