Post-surgical rehabilitation is critical to regain pain-free function and return to daily activities safely and more quickly. Post-surgery rehabilitation helps patients manage post-surgery pain, decrease stiffness and swelling, improve circulation and flexibility, retrain and strengthen muscles, and regain mobility. Post-surgical rehabilitation for joint replacements of the knee, hip, or shoulder can take several months. It is important to begin physical therapy soon after surgery to help the joint heal properly and minimize scar tissues development.