Soreness of calves after running is usually considered to be related to excessive accumulation of lactic acid in local muscles after exercise, which can be relieved by local massage and hot compresses, exercise stretching and other ways. If the calf soreness is obvious, accompanied by swelling, consider that there may be sports strains, can be given to the brake, cold compresses, intermediate frequency electrical stimulation, medication and so on. 1. Excessive accumulation of muscle lactic acid: Running at a faster speed or for a longer period of time can easily cause excessive accumulation of lactic acid in the calf muscles, which in turn leads to calf soreness. Calf pain caused by lactic acid buildup mostly occurs on the second day of exercise. You can consider the method of exercise stretching with local muscle massage and hot compresses to relieve it. 2. Soft Tissue Strain: Sore calves after running may be soft tissue strain such as calf myofascia. Performance for calf pain, swelling. Need to rest and brake, strains within 72 hours can be cold compresses, 72 hours after the hot compresses. It can also be treated with medium frequency electrical stimulation as well as exercise stretching. When the pain is severe, oral non-steroidal anti-inflammatory drugs, such as celecoxib, can be taken as prescribed by the doctor for treatment. If the symptoms of calf soreness after running are serious or last for a long time, it is recommended to consult a doctor in time to clarify the specific cause of the treatment, to prevent the later generation of motor dysfunction.