Poor development of bones, like the poor development of the teeth, may be caused by many diseases. In childhood rickets may arise from lack of vitamin D – manifested for example. Rickety rosary, chest deformity, vertebrae, ribs and skulls.

Furthermore there is a congenital disorder of bone development – osteogenesis imperfecta – bones grow poorly, often heavily-breaking like. The disease has several types, varying degrees of damage, but it is true that the disease is soon revealed already in the hospital, or a little later.

For proper bone development are important nutritional factors – particularly getting enough calcium, phosphorus, etc.