Osteopenia develops when bones begin to lose density but are not yet porous enough to qualify as osteoporosis. This decline is often caused by aging, hormonal changes, nutritional deficiencies, or long-term use of certain medications like corticosteroids. Risk factors include low body weight, physical inactivity, smoking, and excessive alcohol consumption. People with osteopenia are considered at higher risk of eventually developing osteoporosis if no preventative steps are taken.

Unlike osteoporosis, osteopenia rarely causes physical symptoms. Most people discover they have it through routine bone density screening or after sustaining a minor fracture. Occasionally, individuals may experience mild back or joint pain, but this is not typically attributed directly to osteopenia.

Diagnosis is made using a DEXA scan. A T-score between -1.0 and -2.5 indicates osteopenia. This score helps healthcare providers evaluate bone health and assess fracture risk. Additional lab tests may be performed to rule out secondary causes of bone loss or nutritional deficiencies.

Management of osteopenia focuses on stopping or reversing further bone loss. This often involves improving lifestyle habits such as increasing physical activity—especially weight-bearing exercises—ensuring adequate calcium and vitamin D intake, and avoiding tobacco and alcohol. In some cases, especially when the FRAX score indicates high fracture risk, medications may be prescribed.

Preventive strategies include maintaining a nutrient-rich diet, engaging in regular exercise, limiting caffeine and soda intake, and avoiding smoking. Monitoring bone density at regular intervals is essential for tracking changes and preventing progression to osteoporosis.