Muscle vs Nerve vs Bone Pain: Symptoms and Assessment

Why pain descriptions are clues rather than diagnoses

The International Association for the Study of Pain describes pain as a personal experience influenced by biological, psychological and social factors. Neuropathic pain involves disease or injury of the sensory nervous system; symptoms alone do not establish that explanation.

Where pain is felt and how it behaves are useful starting points. A clinician also considers the history, examination and any tests needed to investigate a suspected cause. Pain can have more than one contributing mechanism, especially when it persists.

Muscle pain: strain is one possible explanation

A muscle strain involves overstretching or tearing muscle tissue. NHS strain guidance describes tenderness, weakness, swelling, bruising or cramping after injury. Similar symptoms can occur with other problems, so activity-related pain should not automatically be labelled a strain.

A confirmed minor strain may initially need protection and changes to painful activities. As pain allows, suitable movement can help avoid stiffness. Ask when and how to rebuild activity; a muscle-pain label does not justify a fixed stretching or strengthening programme.

Nerve pain: look beyond a burning or shooting sensation

NHS peripheral neuropathy guidance describes burning, stabbing or shooting pain, tingling, reduced sensation, balance problems and weakness. Peripheral neuropathy is one example of a nerve condition, rather than an explanation for every painful limb.

Persistent tingling, loss of feeling, weakness or balance changes need medical assessment. Treatment depends on the cause and may include prescribed medicines or help with mobility. Do not assume all nerve symptoms can be treated by stretching, massage or a nerve-gliding drill.

If you have diabetes, report reduced foot sensation and a wound that is not healing. These are relevant assessment concerns even when the foot is not very painful.

Bone pain: injury and unexplained symptoms need assessment

Bone pain cannot be confirmed by how deep an ache feels. AAOS bone-stress guidance describes pain in a specific spot that may initially appear with activity, then occur during walking or at rest as the problem worsens. A fall is not required for a stress injury.

Stop the activity provoking suspected bone-stress pain and arrange assessment. An early X-ray can look normal; examination findings may lead to further investigation. Return to loading depends on the injury's location, severity and clinical clearance.

Persistent unexplained bone pain, pain worse at night, a lump or swelling, or unexplained weight loss should be checked by a doctor. The NHS information about possible bone-cancer symptoms explains that these signs can have other causes. They call for assessment, rather than a conclusion that you have cancer.

What to record before a pain assessment

• Where the pain starts, where it spreads and when it began.
• Any injury, recent illness or change in activity.
• What brings it on, what eases it, and whether it interrupts sleep.
• Swelling, skin changes, numbness, weakness or balance problems.
• Medicines, previous treatment and tasks you can no longer manage.

Ask what the working diagnosis is, whether an in-person examination or tests are needed, and what changes should prompt another review. Our pain rehabilitation service can discuss suitability after these assessment needs are considered.

For related information, see our spinal-disc guide and home physiotherapy planning guide.

Pain symptoms needing urgent or emergency assessment

After an injury, seek urgent care for worsening severe pain, marked swelling, inability to bear weight or fever. Seek emergency care for a changed limb shape, numbness, or a cold, blue or grey limb. Do not use exercise to test whether it is a muscle or bone injury.

NHS back pain advice calls for urgent assessment of sudden severe or rapidly worsening back pain, or back pain with fever or feeling unwell. Back pain with symptoms in both legs, loss of feeling around the genitals or anus, new bladder or bowel changes, chest pain, or a serious accident needs emergency care.