Dry and painful bones can be caused by fracture, arthritis, osteoporosis, bone tumor and other factors. 1. Fracture: Fracture caused by direct violence due to trauma, or fatigue fracture and pathologic fracture, etc., can cause pain in the affected area, which may also be accompanied by swelling, deformity, and restriction of activity function. 2. Arthritis: Osteoarthritis caused by age and other factors can cause osteomalacia and degeneration of articular cartilage, resulting in dry and painful symptoms. In addition, rheumatoid arthritis and gouty arthritis can also cause dry and painful symptoms. 3. Osteoporosis: the old and menopausal women can cause osteoporosis due to lack of calcium, which can lead to increased bone resorption, destruction of bone trabeculae and destruction of subperiosteal cortex, resulting in bone dryness and pain symptoms. 4. Bone tumor: primary bone tumor or other parts of the tumor bone metastasis, can lead to bone dryness and pain symptoms, need to consult a doctor to clarify the cause of the tumor after treatment. When the bone is dry and painful, it is necessary to consult a doctor in time and take appropriate treatment under the guidance of a specialized doctor, which can help to relieve the pain and other uncomfortable symptoms as soon as possible.