Bone Pain, Fractures and Hormones

Bone pain or a fracture that happens after only a minor knock can sometimes be the first sign that bone strength is reduced. Because hormones play a central role in building and maintaining the skeleton, some hormonal conditions can affect bone health. This page explains the possible links and why a clinician's assessment matters more than self-diagnosis.

How bone health can relate to hormones

Bone is living tissue that is constantly being broken down and rebuilt. Several hormones keep this process in balance. Sex hormones such as oestrogen and testosterone help protect bone, which is part of why bone loss can accelerate after menopause. Parathyroid hormone and vitamin D regulate calcium, the main mineral in bone. Thyroid hormones and cortisol also influence how quickly bone is turned over.

When these signals are disturbed, bone can lose density over time, often silently, until a fracture occurs. Bone pain itself has many causes, but a fracture from a minor force, a loss of height, or a stooped posture can prompt a clinician to think about bone strength. Because these signs have several possible explanations, they are best understood as clues rather than a diagnosis.

Which hormones and conditions may be involved

Many factors can contribute. None can be diagnosed from the symptom alone, but a clinician may consider:

• Sex hormones. Falling oestrogen after menopause, and low testosterone in men, can speed bone loss and raise the risk of osteoporosis.
• Vitamin D and calcium balance. Low vitamin D can weaken bone and cause aching, and severe deficiency can soften bone.
• Parathyroid hormone. An overactive parathyroid gland can draw calcium from bone and weaken it.
• Thyroid hormones. An overactive thyroid, or excess thyroid medicine, can increase bone turnover.
• Cortisol. Long-term high cortisol levels, including from some medicines, can reduce bone strength.

Non-hormonal causes to keep in mind

Not all bone or skeletal pain is hormonal. Injuries, arthritis, overuse, infections, and other medical conditions can cause pain felt in or near bones. Reduced bone strength can also follow from low body weight, smoking, heavy alcohol use, certain medicines, prolonged inactivity, and a family history of fragile bones. Because the possibilities are broad, a clinician will consider the whole picture, including age, history, and any fractures, before deciding what is relevant.

Tests a clinician might consider

Assessment usually begins with a history and examination, including any fractures, height loss, medicines, and risk factors. Depending on the findings, a clinician might consider:

• A bone density scan to assess bone strength, often after a fragility fracture or when risk factors are present.
• Vitamin D and calcium levels, sometimes with parathyroid hormone.
• Thyroid tests such as TSH if an overactive thyroid is suspected.
• Sex-hormone assessment in specific situations, such as suspected low testosterone.
• Imaging of a painful area when a fracture or other bone problem is suspected.

You can read more about individual tests in our blood tests section and about the messengers themselves in the hormones section. Related conditions are covered in the conditions section, and other symptoms are listed in the symptoms section. See also muscle weakness.

When to see a clinician

It is reasonable to seek medical advice for a fracture that happens after a minor fall or knock, for persistent or unexplained bone pain, for a noticeable loss of height or a stooped posture, or when risk factors for weak bones are present. A clinician can take a history, examine you, arrange appropriate tests such as a bone density scan, and explain the results and options. This page is educational and is not a substitute for personalised medical advice.