Name an indicator of secondary osteoporosis.

• A. Conditions such as hyperthyroidism or prolonged corticosteroid use
• B. Age and genetic predisposition
• C. Poor dietary habits
• D. Sedentary lifestyle

Answer: (A)

Secondary osteoporosis is a condition that arises due to specific medical conditions or factors that affect bone density, rather than from aging or genetic predisposition alone. Conditions such as hyperthyroidism, where there is excess thyroid hormone production, can lead to increased bone resorption and decreased bone density. Prolonged use of corticosteroids is another well-documented cause, as these medications can interfere with the bone remodeling process, decreasing calcium absorption in the intestines and increasing calcium excretion in the urine.

In contrast, while age and genetic predisposition do contribute to the risk of developing osteoporosis, these factors are not classified as conditions that directly cause secondary osteoporosis. Similarly, poor dietary habits and a sedentary lifestyle can contribute to osteoporosis risk but are considered lifestyle factors and not indicators of secondary osteoporosis in the same way that underlying medical conditions are. Therefore, identifying specific medical conditions like hyperthyroidism or the effects of corticosteroids as an indicator of secondary osteoporosis is crucial in understanding the multifactorial nature of this bone disease.