Knee pain from playing table tennis may be caused by impact, excessive exercise intensity, etc., leading to ligament strain, meniscus injury, soft tissue contusion, etc. in the knee joint. If you don’t have sufficient preparation exercise before playing table tennis, exert too much force during playing or hit your knees, etc., you may have overstretching of the knee joint, muscle strain, etc., which may lead to serious consequences such as cruciate ligament strain, soft tissue injury of the knee, meniscus strain or tear, etc., and symptoms of knee pain may appear. In addition, playing table tennis knee pain may also be too long exercise time, resulting in muscle lactic acid accumulation, resulting in localized soreness and pain, this situation can generally be relieved after rest, do not need to worry too much. If you have knee pain when playing table tennis, it is recommended that you go to a regular hospital to find out the cause of the pain and get treatment if necessary.