The most common reason for this symptom to occur is poor local blood circulation or even impaired blood circulation, which can trigger a feeling of local chilliness and fear of cold. Patients with lumbar disc herniation or even lumbar spinal stenosis can also experience cold symptoms in the bones of the lower extremities and legs. Patients with cervical spondylosis, on the other hand, may experience cold symptoms in the bones of the upper limbs and arms. Sitting and walking for a long time and working in a standing position for a long time may induce blood circulation disorders in the legs of the lower limbs. The decrease in the amount of blood circulation in the legs decreases the blood and oxygen supply to the legs, thus producing the symptoms of chills. Structural compression disorders such as elbow tunnel syndrome and carpal tunnel syndrome can lead to impaired blood circulation in the upper extremity arms, which can also produce the sensation of cold bones. The symptoms of cold bones do not occur alone, but are mostly accompanied by other symptoms in the neck, lower back, and surrounding tissues.