E2 ModerateModerate confidencePEM not requiredCross-SectionalPeer-reviewedReviewed
Fatigue, chronic fatigue syndrome and migraine: Intersecting the lines through a cross-sectional study in patients with episodic and chronic migraine.
Kumar, Hemant, Dhamija, Kamakshi, Duggal, Ashish et al. · Journal of neurosciences in rural practice · 2023 · DOI
Quick Summary
This study looked at how fatigue and chronic fatigue syndrome (CFS) occur together with migraine headaches. Researchers tested 60 migraine patients and found that people with chronic migraine (constant migraines) experienced much more severe fatigue than those with episodic migraine (occasional migraines), and about 23% of chronic migraine patients met the diagnostic criteria for CFS. The study also found that fatigue was linked to depression, anxiety, and poor sleep quality.
Why It Matters
This study provides needed quantitative data on the overlap between migraine and fatigue-related conditions, showing that chronic migraine patients carry substantial CFS burden. Understanding these intersecting conditions helps clinicians recognize and address fatigue as a core comorbidity in migraine management, which is particularly relevant since ME/CFS and migraine share overlapping pathophysiology and symptom profiles.
Observed Findings
- Chronic migraine patients had mean FSS scores of 47.87 compared to 37.3 in episodic migraine (P=0.004).
- 60% of chronic migraine patients experienced severe fatigue versus 20% of episodic migraine patients (P=0.004).
- 23.33% of chronic migraine patients fulfilled diagnostic criteria for CFS.
- 83.3% of chronic migraine patients had pathological fatigue compared to 63.3% of episodic migraine patients (P=0.04).
- Fatigue correlated positively with migraine severity, frequency, attack duration, depression, anxiety, and excessive daytime sleepiness.
Inferred Conclusions
- Fatigue and CFS-like presentations are significantly more prevalent in chronic migraine than episodic migraine.
- The relationship between migraine and fatigue is multifactorial, involving psychiatric symptoms and sleep disturbance.
- Holistic treatment approaches addressing fatigue alongside migraine are needed to reduce overall morbidity in chronic migraine patients.
Remaining Questions
- What is the temporal relationship between fatigue onset and migraine onset—does fatigue precede, follow, or develop concurrently with migraine chronification?
- Does treating migraine reduce fatigue severity, or do these conditions require independent therapeutic intervention?
What This Study Does Not Prove
This cross-sectional design cannot establish causation—whether migraine causes fatigue, fatigue causes migraine, or a third factor drives both. The study does not follow patients over time to determine whether fatigue precedes or follows migraine onset. The results are from a single tertiary referral center in India and may not generalize to other populations.
Tags
Symptom:FatigueUnrefreshing Sleep
Method Flag:PEM Not DefinedNo ControlsSmall SampleWeak Case DefinitionMixed Cohort
Metadata
- DOI
- 10.25259/JNRP_63_2022
- PMID
- 37692810
- Review status
- Editor reviewed
- Evidence level
- Single-study or moderate support from human research
- Last updated
- 12 April 2026
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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