A commonly preferred exercise for people with meniscus injuries is swimming. Meniscus injury is usually due to trauma or due to degeneration, there will be ligament damage, cartilage surface damage and other causes of pain and swelling sensation. Meniscus injury patients are recommended to choose swimming when exercise, because when swimming, both knee joints do not need to be stressed, and do not need to bear the effect of gravity, but also can increase the body’s lung capacity, so it is more suitable for meniscus injury patients. Meniscus injury patients in daily life, pay attention to protect the knee joint, to prevent cold, and prohibit strenuous exercise, avoid running, jumping and weight-bearing, etc., resulting in excessive knee flexion and extension, thus causing meniscus injury. It is recommended that patients with meniscus injuries should go to the hospital for timely examination and treatment under the guidance of the doctor to avoid delaying the condition.