Post-exercise calf muscle pain may be caused by lactic acid buildup or local muscle injury. Depending on the cause, rest, physical therapy, rehabilitation and other measures can be taken. 1. Lactic acid accumulation: the calf pain caused by lactic acid accumulation after exercise is usually soreness, because anaerobic exercise produces lactic acid, which fails to be metabolized in time and stimulates the local muscles. Patients can take the following measures. Suspension of strenuous exercise, more rest, moderate local massage; through the hot bath and other forms of hot compresses to promote lactic acid metabolism; you can also choose to ultrashort wave or microwave and other physical therapy to promote recovery. 2. Muscle injury: in strenuous running, jumping, playing basketball, playing soccer is easy to cause muscle injury in the calf and cause pain, the pain is often more intense. The following measures can be taken. Patients need to fix the affected limbs in time, so that the calf in a tension-free situation to get full rest, and promote soft tissue healing; can be used within 72 hours of the cold compresses to control the local inflammation after the injury, edema; if necessary, go to the hospital to perform microwave and other physical therapy, to promote blood circulation and muscle recovery; after 2-3 weeks of healing muscle injury, you can follow the doctor’s instructions for rehabilitative functional exercise. Note: If the pain in the posterior calf muscle after exercise is not relieved after short-term rest, it is recommended to consult a doctor for standardized treatment as soon as possible.