Muscle soreness after exercise may be caused by physiological and pathological factors. Usually, it can be relieved by rest, massage and physiotherapy, medication and so on. 1. Physiological factors: due to long-term lack of exercise, especially after occasional strenuous exercise, the muscles in various parts of the body will appear sore. This is a normal physiological phenomenon, can be relieved through rest, massage, can relax the muscles, release muscle tension, effectively relieve the symptoms of muscle soreness after exercise. 2. Pathological factors such as muscle fiber strain: If the muscle fibers are strained due to inappropriate exercise, the symptoms of muscle soreness after exercise will occur. It can be treated with non-steroidal anti-inflammatory painkillers such as diclofenac sodium, which has anti-inflammatory, analgesic and antipyretic effects, thus relieving the symptoms of post-exercise muscle aches and pains. If the patient after exercise muscle pain, exclude physiological factors, it is recommended to go to the hospital in time to identify the cause of the targeted treatment.