Answer:
Spontaneous fracture.
Explanation:
Spontaneous fractures occur when there is a disease that significantly weakens the bone structure, ie this type of fracture occurs due to a bone rupture that occurred due to a bone disease or a change around bone tissue that weakened the bone.
Among the most common causes of weakness are osteoporosis (calcium deficiency and corticosteroid-induced), bone malignancy or metastasis, Paget's disease (bone tuberculosis), vitamin A overexposure, periprosthetic weakness, osteomyelitis, brucellosis, cerebral palsy (especially in children) and osteoarthritis due to chronic renal failure.
