Chronic injury to the gastrocnemius muscle is often caused by strong muscle contraction, such as playing basketball, jumping and so on; or ankle hyperextension, long-term chronic strain, such as mountain climbing. Most commonly seen in long time standing workers or athletes. Chronic gastrocnemius muscle injury can be completely recovered after active treatment. In the first 72 hours after the gastrocnemius muscle injury, cold compresses should be applied to the injury, bed rest and elevation of the limb. 72 hours later, hot compresses, massage and physiotherapy can be given to help promote the recovery of the injury. It usually takes about 2 months to recover. During the recovery period, no strenuous exercise or weight-bearing activities are allowed, so as not to cause secondary injury, affecting the degree and time of recovery, and then affecting the future life and work. Non-steroidal anti-inflammatory analgesics such as diclofenac and celecoxib can be given to reduce swelling and pain (eliminate swelling and pain) if necessary. If chronic gastrocnemius muscle injury is diagnosed, early and standardized treatment is recommended to minimize the adverse effects of the disease. All of the above medications should be used under doctor’s supervision, avoid self-medication.