Osteomalacia is a rare and harmless osteosclerotic disease, also known as diffuse dense bone disease, familial diffuse osteosclerosis and pitting. It is hereditary and has a higher incidence in males than in females. The disease is mostly without clinical symptoms and laboratory tests are not positive. In the iliac and shoulder joints centered on the acetabulum and articular glenoid, the lesions are arranged radially, partially overlapping each other with a tendency to fuse. The periosteum and articular cartilage were not invaded, and the joint surface was smooth with a well-proportioned gap. Wilcom and Pillmore have classified speckled nodular, linear, and mixed types based on the different radiographic manifestations of speckled bone disease. This disease belongs to the mixed type. X-ray examination of bone speckle disease has the following characteristics: 1, the disease has no clinical symptoms, are found during physical examination or examination of other diseases. 2, the disease is not related to age and sex, the group from 22 to 58 years old, the literature reported that the age from 4 months to 90 years old have the onset. 3. The lesions show diffuse multifocal round, oval, circle, or nodular shadows with increased density, and their morphology travels, partially in line with the long axis of the bone. 4. The lesions mostly involve both ends of long bones, densely in the epiphysis and epiphyses, as well as the pelvis, hands, feet and irregular bones. The closer the lesions are to the joints, the more dense they are and the more dense they are. The lesions may fuse with each other to form patches and obscure normal bone tissue. 5. The edges of the dense speckled lesions are not very clear and sharp, and the closer to the center, the denser the lesions are, while the edges are slightly lighter in density. 6. The lesions invade the cancellous bone of the bone. The periosteum and articular cartilage are not invaded, so the joint space is clear and bright. 7, ECT examination shows that the radiological distribution of the bone is not uniform, and there are multiple foci of bone calcification of different sizes in the cancellous bone. Corresponding radioactive enhancement of bone image. According to the above performance, multiple foci of bone metabolism enhancement in the whole body bone image are abnormal bone metabolism.