A common spontaneous fracture in the elderly is a fracture with no obvious history of trauma. Fractures caused by osteoporosis in the elderly account for more than 50% of the usual fracture patients. So how are these types of fractures caused? Osteoporosis is an age-related disease that occurs with age and endocrine changes, resulting in a lack of bone calcium, which makes the bones appear spongy, thus making them brittle and prone to fractures. This spontaneous fracture is especially common in winter when the elderly tend to lose calcium from their bones, which aggravates the osteoporosis process and makes the bones less strong. Spontaneous fractures account for more than 50% of the usual fracture patients. Osteoporosis is a disease of old age, with age and endocrine changes, resulting in a lack of bone calcium, the bones become brittle and prone to fracture.