Osteoporosis: Symptoms, Causes, DXA Scan, Treatment & Fracture Prevention
By Dr. Moxit Shah, DM Endocrinology | Vishuddha Endocrine Clinic, Ahmedabad
Osteoporosis is a condition in which bones become weaker and more fragile, increasing the risk of fractures. It can develop silently for years, and many people first discover it after a wrist, spine or hip fracture. The good news is that bone health can be assessed, fracture risk can be estimated, and effective treatments are available for people who need them.
At Vishuddha Endocrine Clinic, osteoporosis is evaluated as part of comprehensive endocrine and metabolic bone care. The aim is not simply to improve a DXA number, but to identify the reasons for bone loss, estimate fracture risk and choose an appropriate prevention or treatment plan.
What Is Osteoporosis?
Bone is living tissue that is continuously remodelled. Old bone is removed and new bone is formed. Osteoporosis develops when bone strength decreases because of reduced bone mineral density and/or deterioration in bone structure. Weaker bones are more likely to fracture, sometimes after a minor fall or ordinary daily activity.
Osteoporosis can affect both women and men. Risk generally increases with age, and bone loss can accelerate around menopause. Certain medicines and medical conditions can also contribute to low bone density.
Why Is Osteoporosis Called a Silent Disease?
Most people with osteoporosis have no symptoms in the early stages. Pain usually occurs when a fracture develops. Vertebral fractures can cause back pain, loss of height or a progressively stooped posture. A fracture after a relatively minor fall should prompt an assessment for underlying osteoporosis.
Who Is at Higher Risk?
- Postmenopausal women, particularly with additional risk factors
- Older adults, including men
- People with a previous fragility fracture
- People with a parent who had a hip fracture
- People with low body weight or significant weight loss
- People who smoke or have high alcohol intake
- People with low calcium or vitamin D intake or other nutritional problems
- People with conditions that affect bone metabolism
- People taking long-term glucocorticoid medicines
- People with low sex hormone levels or premature menopause
Medical conditions such as hyperthyroidism, hyperparathyroidism, malabsorption disorders, chronic kidney or liver disease and some endocrine disorders may also affect bone health. The exact evaluation depends on the individual patient.
How Is Osteoporosis Diagnosed?
The most commonly used test for measuring bone mineral density is a central DXA (DEXA) scan. It usually measures the hip and spine and uses a very low dose of X-rays. DXA can help diagnose osteoporosis, identify low bone density and monitor response to treatment.
DXA is only one part of the assessment. A doctor may also review previous fractures, family history, medications, menstrual or reproductive history where relevant, medical conditions, falls and lifestyle factors. Blood tests may be recommended when a secondary cause of bone loss is suspected.
What Does a DXA T-Score Mean?
For postmenopausal women and men aged 50 years or older, the T-score compares bone mineral density with that of a healthy young reference population. A T-score of -2.5 or lower at an appropriate skeletal site is commonly used as a densitometric definition of osteoporosis. However, treatment decisions should not be based on the T-score alone. Fracture history and overall fracture risk are important.
In younger adults, premenopausal women and men younger than 50, Z-scores and the clinical context are generally more relevant than simply applying postmenopausal T-score thresholds.
What Other Tests May Be Needed?
Depending on the patient’s age, history and examination, an endocrinologist may consider blood tests to look for reversible or secondary causes of low bone density. These may include calcium, phosphate, alkaline phosphatase, kidney function, liver function, thyroid testing, vitamin D and other hormone or nutritional investigations when clinically appropriate.
Not every patient needs every test. The investigation should be tailored to the clinical situation.
How Can Osteoporosis Be Prevented?
Bone health is supported by several measures working together:
- Calcium: Aim for adequate dietary calcium from appropriate foods. Supplements may be considered when dietary intake is insufficient.
- Vitamin D: Maintain adequate vitamin D status based on individual needs and medical advice.
- Protein: Adequate protein intake supports muscle and overall musculoskeletal health.
- Exercise: Weight-bearing activity and resistance training can support bone and muscle strength. Balance exercises are particularly useful for reducing fall risk.
- Stop smoking: Tobacco use is associated with poorer bone health.
- Limit excess alcohol: High alcohol intake can increase fracture risk.
- Prevent falls: Review vision, footwear, home hazards, balance, muscle strength and medicines that may increase dizziness or falls.
Osteoporosis Treatment: When Are Medicines Needed?
Medication is considered when fracture risk is sufficiently high. This may be because of osteoporosis on DXA, a previous fragility fracture, or a combination of bone density and other clinical risk factors.
Treatment options include antiresorptive medicines such as bisphosphonates and denosumab, as well as bone-forming or bone-building therapies for selected patients at very high fracture risk. The choice depends on fracture history, kidney function, other medical conditions, previous treatment, preferences and individual risk.
Bisphosphonates
Bisphosphonates reduce bone resorption and are commonly used for people at increased fracture risk. Depending on the medicine, they may be given orally or intravenously. Treatment duration and the need for reassessment depend on the patient’s ongoing fracture risk.
Denosumab
Denosumab is an antiresorptive medicine administered at regular intervals. An important point is that denosumab should not simply be stopped or delayed without a planned follow-up strategy because bone turnover can increase after discontinuation and vertebral fracture risk can rise in some patients.
Bone-Forming Treatments
For selected patients with very high fracture risk, particularly those with severe osteoporosis or multiple fractures, anabolic or bone-forming therapies may be considered. These treatments are usually followed by an antiresorptive strategy to help maintain the gains in bone density.
The treatment plan should always be individualized rather than selected solely from the DXA report.
Osteoporosis and Men
Osteoporosis is not only a women’s disease. Men can develop osteoporosis, particularly with increasing age, previous fractures, low testosterone, long-term glucocorticoid use and certain chronic diseases. A man with a low-trauma fracture should be assessed rather than assuming that osteoporosis is only relevant to women.
Osteoporosis After Menopause
Bone loss can accelerate around and after menopause because estrogen levels decline. Women with early menopause, premature ovarian insufficiency, a history of fragility fracture or other risk factors may need earlier assessment of bone health.
Osteoporosis and Thyroid Disorders
Thyroid health and bone health are closely connected. Excess thyroid hormone can contribute to accelerated bone turnover and bone loss, particularly when hyperthyroidism is prolonged. Excessive thyroid hormone replacement can also be harmful to bone in susceptible patients. This is why thyroid treatment should be adjusted using appropriate laboratory monitoring rather than taking more thyroid hormone than necessary.
For more information, see our Thyroid Health Guide.
When Should You See an Endocrinologist?
Consider an endocrine evaluation if you have had a fracture after a minor fall, have been advised that your bone density is low, have early menopause, use long-term steroids, have a strong family history of hip fracture, or have an endocrine or metabolic condition that may affect bone health.
An endocrinologist can help determine whether the bone loss is primary or related to another medical condition, assess fracture risk, review DXA results and decide whether lifestyle measures alone are appropriate or medication should be considered.
Osteoporosis Care in Ahmedabad
At Vishuddha Endocrine Clinic, Dr. Moxit Shah, DM Endocrinology, provides evaluation and management of osteoporosis and metabolic bone disorders in Ahmedabad.
Vishuddha Endocrine Clinic
104-105, Elite Magnum, Bhuyangdev Cross Road, Opp. Utsav Elegance, Vardhmannagar Society, Ghatlodiya/Memnagar, Ahmedabad, Gujarat 380061
Phone / WhatsApp: +91 99799 92797
Learn more about Osteoporosis care at Vishuddha Endocrine Clinic or contact the clinic for an appointment.
Key Takeaways
- Osteoporosis can remain silent until a fracture occurs.
- DXA is the standard bone mineral density test used in many patients.
- Fracture history and overall fracture risk matter in addition to the DXA result.
- Calcium, vitamin D, adequate nutrition, resistance/weight-bearing exercise and fall prevention support bone health.
- Several effective medicines can reduce fracture risk when treatment is indicated.
- Men and women can both develop osteoporosis.
- Secondary causes of bone loss should be considered, especially in younger patients or those with unusual clinical features.
Medical Disclaimer
This article is for general educational purposes and does not replace an individualized medical consultation. Do not start, stop or change osteoporosis medicines, calcium or vitamin D supplements without discussing your situation with a qualified healthcare professional.
Sources
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS): Osteoporosis
- NIAMS: Osteoporosis Diagnosis, Treatment, and Steps to Take
- Endocrine Society: Pharmacological Management of Osteoporosis in Postmenopausal Women
Written and medically reviewed by Dr. Moxit Shah, DM Endocrinology.
