The intolerable pain when massaging the posterior group of calf muscles is common for the following reasons: First, the massage technique is incorrect or the massage force is too large, exceeding the loading capacity of the calf muscles, resulting in cracks and contusions of the calf muscles, leading to acute injury and intolerable pain. Second, the calf muscles, fascia itself there is a sterile inflammation, when the massage local pressure increases, the inflammatory symptoms aggravate, the pain increases, resulting in intolerable pain. Third, the nerves of the lower limbs themselves are damaged or stimulated, the massage will aggravate the damage and stimulation, resulting in intolerable pain, such as lumbar disc herniation and pear-shaped muscle syndrome, will lead to lower limb sciatic nerve compression, stimulation, the symptoms will be aggravated during the massage. Fourth, the lower extremity of the vascular disease, such as varicose veins or venous thrombosis, when the massage will appear intolerable pain.