Feeling cold and pain inside the calf bones may be caused by such reasons as: 1. It may be caused by cold in the calf. If the patient has insufficient clothing in the calf area, so that it is exposed to wind, cold or soaked in cold water for a long time, then it may lead to a series of sterile inflammation inside the bones, muscles and joints of the calf area. This will be manifested as the above symptoms in the calf area. Some people call this symptom old cold leg. 2, this condition may be caused by vascular lesions in the lower limbs. For example, if there is an embolism or some narrowing inside some large arteries leading to the lower extremities, then it will lead to impaired blood circulation in the lower extremities. This may be caused by some peripheral nerve lesions. For example, when the patient has a lumbar disc herniation, the nerve root stimulation may lead to this abnormal sensation in the calf area. 4, this condition is caused by some old injuries in the calf area. For example, if there is some serious soft tissue blunt contusion, fracture, dislocation and so on, then after its recovery, may remain this abnormal sensation for a long time.