The skeletal system makes up the supporting body, inside of the internal organs and grips the muscles. Bones are made up of bone, cartilage and connective tissue. Developmental changes in the bones are very important for the field of clinical medicine. Bone age is a general indicator of growth in children and adolescents. As bones age, there is a greater possibility of bone fractures, and this is the first indicator of osteoporosis. Osteoporosis is a major health problem that affects a large number of people in the world, more often women than men. Symptoms of the disease occur when the disease has already developed and cannot be cured. Osteoporosis is affected by a variety of risk factors, some may be controlled but some may not. The diagnosis of osteoporosis should be made before the bone fracture, in order to alleviate the symptoms and consequences of the disease as much as possible. Osteoporosis is an untreatable disease, so the most effective method of controlling it is prevention. Prevention should be carried out as early as possible, preferably in working populations (aged between 15 and 65) so that osteoporosis does not even occur. Prevention consists of adequate intake of calcium, vitamin D, proper diet and regular physical activity.