What are the risk factors for bone metastases?

Bone metastases are secondary growths, so the risk depends mainly on the original cancer rather than on a bone problem starting by itself. Breast cancer, lung cancer, and prostate cancer can spread to bone. Risk can also be influenced by the cancer's type, extent, rate of growth, and response to treatment.

Having one of these cancers does not mean bone spread will occur. A new ache, fracture, or abnormal blood result also cannot establish the cause on its own; several non-cancer conditions can produce similar findings.

If you have a cancer linked with bone spread, keep planned oncology appointments and report persistent or changing symptoms. Your team may review your examination, scans, blood tests, cancer type, and previous treatment before deciding whether further assessment is useful.

Contact your cancer team promptly about new, persistent, or worsening bone pain, pain that wakes you, weakness, or difficulty walking. Seek urgent medical help for sudden severe back pain, new leg weakness or numbness, loss of bladder or bowel control, or an injury followed by inability to use a limb.

Ask whether your cancer type has a known pattern of bone spread, which symptoms merit a call, and what tests would clarify a concerning change. You can also ask how treatment plans protect bone health and whether any medicines or supplements need review.