Not always. I flipped a 4 wheeler once. Pain was so bad in my back I really thought I was going into shock. Was taken to a rural clinic, ck'd out to the point it was determined I didn't need a medivac and given pain pills. Get back to civilization and go to what I thought was a real doctor[he has a office in a hospital must be a real Doctor, right?] Well he gives me a quick look over and 2 weeks of flex-a something[pain pills]. Well after 2 weeks of pain pills I felt I could stop them, and immediately noticed something odd. When I sat in a car seat I could feel pressure on my spine, like there was a roll of coins taped there. So I go look at my back in the mirror, and sure enough there was a bulge there on my spine. Go back to to this "Doctor" and point out the bulge in my spine. He dismisses it, saying it is the result of arthritis due to smoking. Me-"do you remember the beginning of this story, that started when I flipped a 4 wheeler?" I insisted on a X-ray. Guess what? two crushed vertebrae. It turned out he never got to be a MD, just enough schooling to practice medicine.
Bottom line he missed a visible broken back. I will never go to anyone that is not a MD.