Bone itching is mostly caused by fasciitis, calcium deficiency and bone tumor. 1. Fasciitis: when there is aseptic inflammation in the body, it will lead to an increase in pressure around the nerves, and when there is a slight inflammatory stimulation, the bones will feel itchy, and a severe inflammatory stimulation will cause painful symptoms. 2. Calcium deficiency: If the body lacks calcium too much, teenagers may affect the development of the body, and the elderly will affect the state of the bones, resulting in symptoms such as bone itching and pain. 3. Bone tumor: As the tumor stimulates the periosteum, it will lead to periosteal reaction, which will lead to local pain or bone itching and other symptoms. If patients have the above symptoms, it is recommended to go to the hospital in time for relevant examination and treatment under the guidance of the doctor.