<unk>  can be caused by the various loads to which bones are subjected during normal daily activity. It occurs in two different types mainly depending on the load: diffuse damage and microcracks.
Microdamage in bone
Disorders of calcium metabolism
Metastatic calcification
Progressive osseous heteroplasia
Endocrine bone disease
Steroid-induced osteoporosis
Ectopic calcification
Vitamin D deficiency