What happens if cancer pain is not treated?

Pain can come from a tumour pressing on tissue, inflammation, nerve irritation, treatment effects, or cancer involving bone or an organ. Persistent pain may lead a person to move less, breathe shallowly, eat poorly, or avoid activities. Poor sleep and worry can intensify the pain experience, while reduced movement can cause stiffness, weakness, and loss of confidence. Pain can also be a sign that the cancer or another problem has changed. Persistent bone pain or persistent abdominal pain needs clinical assessment rather than self-treatment alone.

Tell the cancer team where the pain is, what it feels like, how long it lasts, what makes it better or worse, and how it affects sleep and function. The team may check for a new cause, adjust analgesic medicines, add treatment for nerve pain or inflammation, or use palliative radiotherapy when a particular tumour area is painful. Cancer pain management can include medicines, physical measures, procedures, and emotional support. Palliative care can be introduced alongside cancer treatment and is focused on comfort and quality of life.

Seek emergency care for sudden severe back pain with leg weakness or loss of bladder or bowel control, new confusion, severe breathlessness, chest pain, or pain after a fall. Contact the care team promptly when pain is rapidly worsening, prevents sleep or movement, comes with fever or repeated vomiting, or is not relieved by the prescribed plan. Do not change opioid doses or stop regular pain medicines without advice.

Ask what may be causing the pain, how quickly relief should begin, which side effects to watch for, and who to call outside clinic hours. Ask whether radiotherapy, a nerve treatment, physiotherapy, or palliative care could add to the pain plan.