Calf muscle hardness has more causes, the more common calf muscle strain, trauma, fasciitis, calcium deficiency, etc., need to improve the auxiliary examination, to clarify the cause of the disease, to give the general treatment, physical therapy, drug treatment and surgical treatment. 1. Strain injury: such as long-distance walking, strenuous exercise, etc., resulting in excessive accumulation of lactic acid in the calf muscles. Patients need to reduce the activities, give the calf muscles appropriate massage, hot packs, pain is obvious can be given to ibuprofen and other painkillers. 2. Trauma: trauma leads to blood vessel injury in the calf muscle, the formation of hematoma in the calf muscle tissue, and then gradually mechanization, adhesion and hardening. Hot compresses can be applied locally to promote local blood circulation and facilitate absorption. 3. Fasciitis: stimulation by cold and strain will lead to spasm of calf muscle, aseptic inflammatory changes in the fascia and hardness to touch, which can be gradually relieved after warm treatment. 4. Calcium deficiency: when the patient lacks calcium, the nerve excitability within the muscle increases, which can lead to muscle hardness and spasm, and need to supplement the relevant calcium supplements, such as calcium gluconate, etc., and usually need to eat more high-calcium food, and more sunshine. It is recommended that the patient go to the hospital, complete the auxiliary examination, clarify the cause of the disease, and then given by a professional doctor to the relevant treatment, the drug needs to be used under the guidance of a professional doctor.