Soreness in the calf muscles on both sides is a relatively common symptom among clinics, and the main reasons include the following: 1. There may be muscle pulling pain caused by too much activity or too much walking. Due to the amount of exercise or some work environment need to stand for a long time, resulting in the muscle to produce a large amount of lactic acid. After resting, the lactic acid discharge is limited, it is easy to form the symptoms of soreness in the muscle. 2, some of the vascular lesions of the lower limbs, such as varicose veins or the formation of some thrombosis, can lead to the symptoms of soreness of the calf muscles. 3, due to the lumbar vertebrae or intervertebral disc herniation compression of the nerves, resulting in the skin of the calf, or ankle with some swelling, soreness and pain, or even numbness. Therefore, the symptoms of calf muscle pain, it is best to go to a regular hospital for a detailed examination to find the exact cause of the disease, and for the cause of the systematic treatment.