The loss of bone with age, osteoporosis, and fractures.
D000328:Adult; D000368:Aged; D000375:Aging; D001862:Bone Resorption; D005260:Female; D005264:Femoral Fractures / Q000453:epidemiology; D005272:Femur Neck / Q000293:injuries; D005598:Fractures, Spontaneous / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D008962:Models, Theoretical; D010024:Osteoporosis; D011885:Radius Fractures / Q000453:epidemiology; D012737:Sex Factors; D013124:Spinal Injuries / Q000453:epidemiology