Age, hormones, inherited characteristics, nutrition, medical conditions and some medicines can all play a role. Understanding these factors helps you ask better questions about testing and treatment.

Affiliate disclosure: This article contains affiliate links. We may earn a commission from purchases through them, at no additional cost to you.

Optional commercial resource: You can review this paid osteoporosis program. Check its qualifications and claims carefully. A general program cannot identify the medical causes of your bone loss.

How Bone Loss Happens

Bone is living tissue that continually renews itself. Cells called osteoclasts remove older bone, while osteoblasts form new bone.

Bone loss occurs when removal exceeds replacement. The amount of bone built earlier in life also influences how much reserve a person has as they age.

For a broader introduction, read Understanding Osteoporosis.

Causes and Risk Factors Are Not Quite the Same

A cause directly contributes to the condition. A risk factor increases the likelihood of developing it but does not mean it will definitely occur.

For example, family history can indicate greater susceptibility. A particular hormone disorder or medication may be a more direct contributor.

Several factors often act together, and some people develop osteoporosis without an obvious single explanation.

Some prescribed medicines affect bone strength. Read about steroids and osteoporosis if you take glucocorticoids such as prednisolone.

1. Aging and Menopause

Bone loss becomes more common with advancing age.

Around menopause, declining estrogen can accelerate bone loss. Early menopause or removal of the ovaries before the usual menopausal age may increase concern.

Men can also develop osteoporosis. Certain conditions that lower testosterone contribute to risk.

These hormonal issues require individual assessment; “hormone-balancing” supplements are not a substitute for diagnosis.

Our bone-health guide for people over 50 discusses practical next steps.

2. Family History and Body Build

A parent’s history of osteoporosis or hip fracture can be relevant to your own assessment.

Low body weight is another risk factor. However, appearance cannot reliably show bone strength: a person who looks fit or has a larger body can still have osteoporosis.

Bring relevant family history to appointments rather than assuming that either healthy habits or body size rules out the condition.

3. Inadequate Nutrition and Low Energy Intake

Long-term inadequate calcium or vitamin D intake can contribute to bone-health problems. Too little overall food or protein, restrictive eating and eating disorders can also matter.

This does not mean that calcium deficiency explains every case, or that adding a large supplement dose will address every cause.

Our osteoporosis diet guide explains how to review your usual meals.

4. Medical Conditions

Some conditions affect bone remodeling, hormone levels or nutrient absorption.

Examples include:

• An overactive thyroid or parathyroid glands.
• Conditions involving excess cortisol.
• Coeliac disease and other causes of malabsorption.
• Rheumatoid arthritis and some other inflammatory illnesses.
• Certain disorders affecting sex hormones.

Osteoporosis related to another disease or medication is often called secondary osteoporosis. Identifying a contributing condition may change the treatment plan.

Before following a natural-treatment plan: Review the seller’s program information and discuss proposed changes with your clinician. Advice about diet or supplements should not delay investigation of an underlying condition.

5. Medicines That Can Affect Bones

Long-term systemic glucocorticoids, such as prednisolone, are an important example. Some breast- and prostate-cancer treatments and certain antiseizure medicines can also affect bone health.

The relevance depends on the medicine, dose, duration and your other risks.

Do not stop a prescribed medicine yourself. Ask your prescriber whether you need a bone-health assessment or protective treatment while continuing necessary care.

Bring a complete list of medicines and supplements, including products bought without a prescription.

6. Smoking, Heavy Drinking and Inactivity

Smoking and heavy alcohol use are associated with poorer bone health. Prolonged inactivity can contribute to bone loss and reduced muscle strength.

These are areas where support and practical changes may help. However, osteoporosis is not evidence that someone has failed to live healthily.

Read our prevention and lifestyle guide and exercise guide for further information.

Does Stress or One Particular Food Cause Osteoporosis?

Avoid reducing a complex condition to one food, drink or stressful period.

Claims that sugar “steals calcium,” or that a particular ingredient alone explains bone loss, can distract from a proper review of overall risk.

When you encounter a claim, ask whether it is supported by human evidence and whether it describes an association or a demonstrated cause.

How Can a Clinician Investigate the Cause?

Assessment may include your fracture history, family history, diet, medicines, menstrual or hormonal history and other health conditions.

A bone-density scan helps assess density, while selected blood tests or other investigations may help identify contributors. Not everyone needs the same tests.

Useful questions include:

• Could a condition or medicine be contributing?
• Are there nutritional gaps worth addressing?
• Do my results suggest further investigation?
• How does this affect my treatment plan?

See our bone-density testing guide for more detail.

What Should You Do Next?

Discuss your risk factors even if you have no symptoms. If you have already had a low-trauma fracture or an osteoporosis diagnosis, ask for a plan that addresses both possible causes and future fracture risk.

Our osteoporosis treatment guide explains how medical care and lifestyle measures fit together.

Optional further reading: This commercial osteoporosis resource is available through an affiliate link. Purchasing it is not necessary to obtain an assessment or follow the educational guides linked above.

Resources

• NIH NIAMS: Osteoporosis—Causes and Risk Factors
• NHS: Causes of Osteoporosis
• Mayo Clinic: Osteoporosis Symptoms and Causes

Affiliate disclosure: We may earn a commission from purchases through affiliate links, at no additional cost to you.

Medical disclaimer: This article provides general education, not an individual diagnosis. Consult your healthcare professional about possible causes of bone loss, and do not stop prescribed medicines without advice.

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