After lipo - the compression garment on my thighs have caused dents on my inner thighs- will it stay like this?

At 4 days postop you are really early in recovery. It is not unusual to have irregular swelling and contours can look a little odd at this point. If there is truly an excessive pressure point between your garment or a crease that the garment is creating, have your surgeon look at the area as you may need a different garment or an adjustment to the current one. Swelling can sometimes be helped by lymphatic massage as well, in order to milk out excess fluid and try to smooth irregularities. Surgeons are split as to whether they believe that lymphatic massage really makes a difference.