McGill Pain Questionnaire
McGill Pain Questionnaire (MPQ) · Also known as: MPQ, McGill Pain Index
The McGill Pain Questionnaire (MPQ) is a multidimensional pain assessment instrument developed by Ronald Melzack in 1975. It measures pain across sensory, affective, and evaluative dimensions, allowing clinicians and researchers to capture the qualitative experience of pain beyond simple intensity ratings. The MPQ remains one of the most widely used pain assessment tools in clinical and research settings.
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When to use it
The McGill Pain Questionnaire is indicated for detailed characterization of pain in chronic pain conditions (e.g., low back pain, rheumatoid arthritis, neuropathic pain, cancer pain), pain research studies requiring multidimensional assessment, clinical documentation of pain quality changes over treatment, and situations where distinguishing pain types (nociceptive vs. neuropathic) informs management. The short form is preferred in time-pressured settings (emergency, brief clinic visits, repeated measures). The full version is recommended when comprehensive pain profiling guides treatment selection or when research questions require dimensional analysis.
Strengths & limitations
- Multidimensional assessment captures sensory, affective, and evaluative pain aspects, providing clinically rich information beyond simple intensity ratings
- Strong psychometric properties: Cronbach's alpha ≥0.70 across subscales, test-retest reliability r ≥0.70, well-established convergent and discriminant validity
- Validated in 70+ languages and extensively tested across diverse populations (chronic pain, acute pain, pediatric, cancer, postoperative)
- Widely recognized as a gold standard; included in numerous clinical guidelines and health outcome registries
- Short-form version allows rapid screening without sacrificing dimensional richness
- The full 78-item version is lengthy and burdensome for acutely ill or fatigued patients; reading comprehension requirement may challenge patients with literacy limitations
- Descriptor selection may vary by language and cultural conceptualization of pain; non-English translations show variable psychometric properties
- Does not specifically assess temporal aspects of pain (onset, duration patterns) or functional impact on activities of daily living
- Social desirability bias can inflate affective subscale scores in clinic settings where patients perceive pressure to appear suffering or deserving of treatment
Frequently asked
Should I use the full 78-item or short-form version?
Use the short form (SF-MPQ, 15 items) for rapid screening, time-pressured clinical settings, and repeated measures over weeks/months. Use the full version (78 items) when comprehensive pain characterization drives treatment decisions, during initial pain assessment, or in research requiring dimensional validation. If in doubt, start with the short form; if results are ambiguous or treatment selection depends on detailed descriptor data, administer the full version.
What do elevated sensory vs. affective subscale scores tell me?
Elevated sensory subscale scores (0-40 on full MPQ) reflect pain quality and intensity perception—sharp, throbbing, aching pain. Elevated affective subscale scores (0-14) reflect emotional and autonomic distress—tiring, exhausting, fearful responses. High sensory + low affective suggests primarily nociceptive pain (tissue damage); low sensory + high affective suggests centralized or psychological pain modulation. Both elevated suggests severe, emotionally distressing pain requiring multimodal treatment.
Are McGill Pain Questionnaire scores comparable across languages?
Not always. Translation quality varies; pain descriptors have cultural-linguistic nuances. The English version remains the gold standard. If using translated versions, consult the specific validation study for that language/population. European and Asian translations (French, German, Spanish, Chinese, Japanese) generally show good psychometric equivalence. Non-Western languages and rare language translations may have limited validation—use with caution and consider back-translation checks.
Can I use the McGill Pain Questionnaire for acute postoperative pain?
Yes, but with caveats. The SF-MPQ is preferred for acute settings due to brevity. Postoperative patients may have difficulty selecting appropriate descriptors if pain is extremely acute or severe, limiting descriptor validity. Use in conjunction with simple numeric pain intensity ratings (0-10) for acute pain. The full version is better suited for persistent postoperative pain (weeks to months) where pain quality and emotional response become clinically relevant.
Sources
- Melzack, R. (1975). The McGill Pain Questionnaire: Major properties and scoring methods. Pain, 1(3), 277-299. DOI: 10.1016/0304-3959(75)90044-5 ↗
- Melzack, R. (1987). The short-form McGill Pain Questionnaire. Pain, 30(2), 191-197. DOI: 10.1016/0304-3959(87)91074-8 ↗
- Boureau, F., Doubrère, J.F., & Luu, M. (1990). Comparative study of validity and reliability of four French McGill Pain Questionnaire versions. Pain, 42(2), 169-184. link ↗
How to cite this page
ScholarGate. (2026, June 3). McGill Pain Questionnaire (MPQ). ScholarGate. https://scholargate.app/en/pain-medicine/mcgill-pain-questionnaire
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