Why Can Pain Persist When Imaging Is Normal?

Key Takeaways

• Pain is a real personal experience, but it cannot be measured by X-ray, CT or MRI alone. Imaging primarily shows visible anatomical or tissue findings; it is not a complete pain assessment. [1–3]
• “Normal imaging” does not mean that pain is imagined, nor does it mean that every disease has been excluded. It means that the examination did not demonstrate a corresponding abnormality sufficient to explain the current presentation. History, clinical examination and appropriate medical assessment still matter.
• Conversely, an imaging report describing “degeneration,” “bulging,” “tearing” or “defects” does not automatically identify the source of pain. Systematic reviews show that many asymptomatic adults have imaging abnormalities in the spine, knee and shoulder, and that some findings become more prevalent with age. [4–7]
• Persistent pain may be influenced by tissue status, nociceptive processing, sleep, fatigue, psychological stress, activity avoidance and real-world load. Normal imaging alone does not justify labelling someone as having a “psychological problem” or nociplastic pain. [2,3,8]
• The BAIZE Capacity–Load Clinical Framework organises clinical information and reassessment decisions. It is not a pain diagnosis and does not replace imaging, laboratory investigation or specialist referral when these are indicated.

Why Does This Question Matter?

“My scan is normal, so why am I still in pain?” is one of the most common—and most easily misunderstood—questions in rehabilitation. Some people respond by seeking repeated imaging. Others are told that “nothing is wrong” even though they remain unable to sit, run, reach overhead or sleep normally. Others see words such as “degeneration” or “disc protrusion” in a report and become afraid to move.

Pain and imaging provide different types of information. Imaging answers a specific question about what is visible under particular examination conditions. A pain assessment must also ask when symptoms occur, how they change, what functions they affect, whether neurological or systemic features are present, and how activity and recovery conditions relate to the presentation.

This article addresses common musculoskeletal pain when there is no established evidence of major trauma, infection, malignancy or progressive neurological impairment. It must not be used to rule out serious disease without medical assessment.

What Does the Research Say?

1. Imaging Can Be Important, but It Does Not Directly Display Pain

The revised International Association for the Study of Pain definition describes pain as “an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage.” The accompanying notes distinguish pain from nociception and caution that pain cannot be inferred solely from activity in sensory neurons. [1] An examination that does not show a major structural abnormality therefore cannot invalidate a person’s pain experience.

The value of imaging depends on the clinical question and context. Imaging can be essential when fracture, malignancy, infection, significant neural compression or a finding that would change surgical or specialist management is suspected. For low back pain, however, NICE recommends against routine imaging in non-specialist settings and recommends considering imaging in specialist care only when the result is likely to change management. [9] This does not mean that imaging is useless. It means that the test should serve a clinical decision.

2. Imaging Abnormalities and Symptoms Do Not Have a One-to-One Relationship

Studies of asymptomatic populations provide important context for interpreting imaging reports. In a systematic review of 33 studies and 3,110 asymptomatic individuals, Brinjikji and colleagues found that imaging features of spinal degeneration increased with age. Estimated disc degeneration prevalence rose from 37% at age 20 to 96% at age 80. The authors emphasised that these findings should be interpreted in the context of the patient’s clinical presentation. [4]

A systematic review and meta-analysis of 63 studies, involving 4,751 asymptomatic uninjured adults and 5,397 knees, found pooled prevalence estimates of 24% for cartilage defects and 10% for meniscal tears, with higher prevalence in older groups. [5] Systematic reviews of the shoulder also show that glenohumeral, acromioclavicular, subacromial and rotator-cuff imaging findings can be present in asymptomatic adults, although heterogeneity is substantial and certainty is low for several estimates. [6,7]

These studies do not show that every imaging abnormality is irrelevant, and they cannot be used to dismiss a structural disorder in an individual. They support a narrower but important conclusion: an imaging finding should be checked against symptom distribution, clinical examination, time course and functional change rather than being treated as an automatic explanation for pain.

3. Persistent Pain May Involve Multiple Coexisting Mechanisms

Persistent pain cannot always be explained by ongoing tissue injury alone. The IASP classification describes chronic primary pain as persistent or recurrent pain lasting longer than three months, associated with significant emotional distress or functional disability, and not better accounted for by another chronic pain diagnosis. [2]

Nociplastic pain is a mechanistic descriptor referring to pain associated with altered nociception. It is not synonymous with “psychological pain,” and it does not describe every chronic pain presentation. [3,8] Nociceptive, neuropathic and nociplastic mechanisms may coexist within the same individual. [3,8]

Sleep disturbance, fatigue, widespread sensitivity, stress and anxiety may interact with pain, but their presence does not prove that pain is “only psychological.” Likewise, normal imaging alone is insufficient to classify pain as nociplastic. Mechanism-informed history and examination—and consideration of more appropriate explanations—remain necessary.

4. Assessment Should Expand from “Finding Damage” to Explaining Function and Risk

The 2023 WHO guideline for chronic primary low back pain emphasises person-centred, integrated assessment and care that considers the individual combination of physical, psychological and social factors rather than relying on a single isolated intervention. [10]

For persistent pain, useful reassessment may include functional tasks, activity tolerance, strength or movement performance, sleep and recovery, symptom distribution and neurological findings—not only changes on a scan.

BAIZE Clinical Interpretation

The following section is REPULI’s framework-based clinical interpretation of the evidence above. It is not a single causal explanation established by research, and it is not a diagnosis.

Capacity Profile

• Structural Capacity: Even when imaging does not show a major abnormality, history of trauma, local load response, joint stability and appropriate clinical screening remain relevant. “Not demonstrated” does not mean “impossible.”
• Functional Capacity: Examine strength, range of motion, coordination, endurance and performance in symptom-related tasks to identify the abilities that limit real-world function.
• Biological Capacity: Consider illness, inflammatory features, medication, metabolic status, neurological symptoms and other factors that may affect pain and recovery.
• Recovery Capacity: Record sleep, fatigue, stress, recovery rhythm, pain sensitivity and the response following activity.

Load Profile

• Mechanical Load: Work demands, repeated movement, training volume, impact, lifting and recent changes in activity.
• Physiological Load: Illness, sleep loss, systemic fatigue, inflammation or other physiological stressors.
• Psychological Load: Concern about damage, heightened vigilance to pain, work or family stress, and persistent activity avoidance due to fear of pain.

Clinical Hypothesis and Decision

Based on the evidence above, a testable BAIZE hypothesis is that when imaging does not provide a sufficient explanation, symptoms may relate to a dynamic mismatch involving one or more functional, recovery or biological capacity limitations and current mechanical, physiological or psychological load. This is a hypothesis that must be tested through examination, staged intervention and reassessment. It must not be inferred from normal imaging alone.

• Primary limiting factor: First determine whether medical investigation is required, then identify the testable factor currently exerting the greatest effect on function.
• Build Capacity: Progressively restore the specific strength, movement control, endurance, activity confidence or other capacity identified during assessment.
• Manage Load: Temporarily adjust the dose and timing of symptom-provoking load while retaining tolerable life and sporting activity where appropriate.
• Reassessment measures: (1) quality and tolerance of the target task; (2) strength, range of motion or endurance; (3) symptom distribution, intensity and recovery after activity; and (4) changes in sleep, fatigue and neurological findings.

What Does This Mean for You?

1. Treat imaging as one piece of the puzzle, not the final verdict. Ask a clinician to interpret the report alongside your symptoms, examination and functional goals.
2. Track patterns, not only a pain score. Which tasks, doses and time frames provoke symptoms? How do you recover afterwards? Do sleep, stress and fatigue change at the same time?
3. Avoid both complete inactivity and unsupported “pushing through.” Activity type, range, intensity, frequency and recovery interval can be adjusted after appropriate assessment.
4. Do not use normal imaging to rule out disease by yourself. New red flags or a meaningful change in the presentation require medical reassessment.

Seek urgent medical care for pain following major trauma; fever or systemic illness with marked pain; progressive limb weakness or numbness; new bladder or bowel dysfunction; saddle sensory change; unexplained weight loss; a known history of cancer with new persistent pain; chest pain; marked breathing difficulty; syncope; or altered consciousness.

FAQ

1. Does a Normal MRI Mean That I Am Not Injured?

Not necessarily. MRI is valuable for many structural questions, but the region examined, timing, resolution and clinical question influence interpretation. Injury or disease should be considered alongside the mechanism, symptoms, clinical examination and any other indicated investigation.

2. Is Pain with Normal Imaging “All in My Head”?

No. Pain is a real experience. Psychological stress, emotion and sleep may influence pain processing and recovery, but this does not make pain imaginary and does not replace structural, neurological and systemic assessment. [1–3]

3. Does “Degeneration” on Imaging Always Cause Pain?

No. Degenerative imaging features are also common in asymptomatic people and many become more prevalent with age. [4–7] Whether a finding is relevant to your symptoms requires clinical correlation.

4. Can Rehabilitation Assessment Still Help If Imaging Is Normal?

Yes, when pain or functional limitation persists. Rehabilitation assessment can examine strength, range, control, endurance, task tolerance, recovery and load—questions that imaging cannot answer completely.

5. Should I Repeat the Scan or Request a More Advanced Test?

Persistent pain alone does not automatically justify repeated imaging. A more useful question is whether a new test is likely to change diagnosis or management. Further investigation may be appropriate when new red flags or progressive neurological symptoms arise, or when a clinician expects the result to change a decision. [9]

6. What Is Nociplastic Pain?

It is a mechanistic descriptor for pain associated with altered nociception. It is not synonymous with psychological pain and cannot be diagnosed solely because imaging is normal. [3,8]

7. Does More Severe Pain Mean More Severe Tissue Damage?

Not always. Pain may indicate injury after major acute trauma, but its intensity can also be influenced by nociceptive processing, inflammation, sleep, stress, previous experience and context. Tissue severity cannot be inferred from a pain score alone. [1,3]

8. Can I Keep Exercising?

That depends on risk, symptom behaviour and current capacity. In the absence of red flags, many people can retain appropriately modified activity and progress it over time. Medical assessment should come first after significant trauma, rapid deterioration, progressive neurological features or systemic symptoms.

References

1. Raja SN, Carr DB, Cohen M, et al. The revised International Association for the Study of Pain definition of pain: concepts, challenges, and compromises. Pain. 2020;161(9):1976-1982. doi:10.1097/j.pain.0000000000001939. PMID: 32694387.
2. Nicholas M, Vlaeyen JWS, Rief W, et al.; IASP Taskforce for the Classification of Chronic Pain. The IASP classification of chronic pain for ICD-11: chronic primary pain. Pain. 2019;160(1):28-37. doi:10.1097/j.pain.0000000000001390. PMID: 30586068.
3. Fitzcharles MA, Cohen SP, Clauw DJ, Littlejohn G, Usui C, Häuser W. Nociplastic pain: towards an understanding of prevalent pain conditions. Lancet. 2021;397(10289):2098-2110. doi:10.1016/S0140-6736(21)00392-5. PMID: 34062144.
4. Brinjikji W, Luetmer PH, Comstock B, et al. Systematic literature review of imaging features of spinal degeneration in asymptomatic populations. AJNR Am J Neuroradiol. 2015;36(4):811-816. doi:10.3174/ajnr.A4173. PMID: 25430861.
5. Culvenor AG, Øiestad BE, Hart HF, Stefanik JJ, Guermazi A, Crossley KM. Prevalence of knee osteoarthritis features on magnetic resonance imaging in asymptomatic uninjured adults: a systematic review and meta-analysis. Br J Sports Med. 2019;53(20):1268-1278. doi:10.1136/bjsports-2018-099257. PMID: 29886437.
6. Ibounig T, Sanders S, Haas R, et al. Systematic Review of Shoulder Imaging Abnormalities in Asymptomatic Adult Shoulders (SCRUTINY): abnormalities of the glenohumeral joint. Osteoarthritis Cartilage. 2024;32(10):1184-1196. doi:10.1016/j.joca.2024.06.001. PMID: 38876437.
7. Ibounig T, Rämö L, Haas R, et al. Imaging abnormalities of the acromioclavicular joint and subacromial space are common in asymptomatic shoulders: a systematic review. J Orthop Surg Res. 2025;20(1):7. doi:10.1186/s13018-024-05378-4. PMID: 39754140.
8. Kaplan CM, Kelleher E, Irani A, Schrepf A, Clauw DJ, Harte SE. Deciphering nociplastic pain: clinical features, risk factors and potential mechanisms. Nat Rev Neurol. 2024;20(6):347-363. doi:10.1038/s41582-024-00966-8. PMID: 38755449.
9. National Institute for Health and Care Excellence. Low back pain and sciatica in over 16s: assessment and management. NICE guideline NG59. Published 2016; updated 2020; recommendations page updated 2025. https://www.nice.org.uk/guidance/ng59/chapter/recommendations.
10. World Health Organization. WHO guideline for non-surgical management of chronic primary low back pain in adults in primary and community care settings. Geneva: WHO; 2023. ISBN 978-92-4-008178-9. https://www.who.int/publications/i/item/9789240081789.

Author & Review

Written by REPULI Clinical Team

Reviewed by David Konrad Lehr, PT, SPT

Master's Degree in Rehabilitation and Healthcare Management

Founder & Lead Expert, REPULI

Clinical focus: sports injury rehabilitation, post-operative functional restoration and neuromusculoskeletal rehabilitation

Last evidence search: 20 July 2026

Last updated: 21 July 2026

This article is for health education and does not replace face-to-face medical diagnosis, individual assessment or advice from the treating physician. Seek medical care for major trauma, progressive weakness or numbness, new bladder or bowel dysfunction, saddle sensory change, fever with marked pain, chest pain, marked breathing difficulty, syncope or altered consciousness.