You have pain when you exercise, so you stop going to the gym and see a doctor. The doctor writes you a prescription for Physical Therapy that includes "exercise therapy". Your physical therapist tells you that you need to start exercising, but not to do any exercises that cause you pain! This puts you in a frustrating catch-22 situation, which nobody seems to have the answer to! If you have pain with exercising and need to avoid pain, how can you exercise to reduce your pain?  You've heard the phrase "no pain, no gain!" but that doesn't sound very scientific does it? But what is the answer? Should rehab be pain-free? Or should you ignore your pain and just grin and bear it! This article will answer these questions and provide you with scientific strategies to rehabilitate a painful injury!