Yes, you can. The inner and outer thighs are gallbladder meridian and liver meridian, respectively, as well as lymph. Knocking on the door can eliminate edema, promote blood circulation and make legs slim. However, it will take at least a month to see the effect. After losing weight, you should knock frequently, otherwise it will rebound.

But knock hard, don't be afraid of pain, it will hurt if it doesn't work, and it will do if it doesn't work. When you knock, it won't hurt. But don't do it too often, or it will be counterproductive.

I hope my answer can help you!