Discover the ABC's of exercise to improve your energy, stability, cardio, mobility and suppleness to age perfectly and manage your functional Conditioning  and general performance! An X-ray just isn't necessary to diagnose knee soreness. Your doctor may buy an X-ray if other causes are being ruled out or operation is considered. https://www.theorthopaedicandpainpractice.com/all-you-need-to-know-about-osteoarthritis/