Previously published as "Treat Your Knee Pain Naturally: A wrong exercise and your pain will aggravate. Learn most effective, tried & tested home exercises" by Dr. Sunit S Ekka (PT).Osteoarthritis (OA) knee is the most common chronic disease and one of the leading causes of pain and disability worldwide. It affects the sufferer's ambulation, reduces the quality of life and social participation.However, there is various research that reveals that exercises and lifestyle modification can significantly improve the quality of life in mild to moderate OA knee.But, in my clinical experience, I have observed that many OA knee sufferers already knew various knee exercises. But, they are confused about how to perform it and are clueless about its significance.For this matter, we have covered all the knee rehabilitation exercises under three OA knee stage.1) Early stage (mild)2) Intermediate stage (moderate).3) Late stage (severe).We have discussed each and every exercise in a very detailed manner with clear illustrations under the following subheading for easy grasp.1) Technique of exercise2) Step-by-step method of exercise.3) Significance of exercise.However, to be realistic, all the exercises are of great help for an early and intermediate OA knee sufferer.The late stage requires surgical intervention. The exercises in late stage are more of pre-surgical preparation which is an important pre-surgical protocol for reducing post-surgical complications and better outcomes of the operation.In addition to exercises, lifestyle modification is also very important. In this book we will learn:1) Tips on lifestyle modification.2) Do's and don't3) Hydrotherapy.With this, I wish all the OA knee sufferer, Happy Healing!