What is the main cause of osteoporosis?

What is the main cause of osteoporosis?
  1. Inflammation of joints due to accumulation of uric acid crystals
  2. Progressive degeneration of skeletal muscle mostly due to genetic disorder
  3. Age-related disorder characterized by decreased bone mass and increased chances of fractures
  4. Decreased levels of estrogen

Solution

Osteoporosis is an age-related disorder characterized by decreased bone mass and increased chances of fractures. Decreased levels of estrogen is a common cause.

Asked in: NCERT

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