A meta-analysis of 10 studies involving 4.8 million participants found that people with allergic rhinitis have 2.75 times higher odds of developing migraine compared to those without allergic rhinitis.
- People with allergic rhinitis face nearly 3 times the risk of migraine
- Analysis included over 4.8 million participants across 10 studies
- Results suggest 23-82 additional migraine cases per 1,000 people with allergic rhinitis
How this compares to prior research
Previous observational studies suggested a potential connection between allergic rhinitis and migraine, but the evidence remained inconsistent and fragmented. While individual studies hinted at an association, no comprehensive synthesis had quantified the magnitude of risk across multiple populations. This meta-analysis consolidates data from 4.8 million participants to provide the first robust estimate of how much allergic rhinitis increases migraine risk.
Prevalence trends in allergic conditions, global data, 1980–1989
Key findings
- Allergic rhinitis patients showed 2.75 times higher odds of migraine (95% CI: 1.80-4.19) across all studies analyzed
- The association remained consistent across different study designs, age groups, and analytical approaches in subgroup analyses
- Absolute risk estimates indicated 23-82 excess migraine cases per 1,000 individuals with allergic rhinitis, with population attributable fractions of 6.8-18.1%
What this means in practice
- Inform your doctor if you have allergic rhinitis and experience frequent headaches, as you may be at higher risk for migraine
- Consider integrated treatment approaches that address both allergic rhinitis and migraine if you have both conditions
- Ask about preventive migraine strategies if you have allergic rhinitis, given the elevated risk identified in this research
Frequently asked questions
Does having allergic rhinitis mean I will definitely get migraines?
No, but your risk is 2.75 times higher than people without allergic rhinitis. This translates to 23-82 additional migraine cases per 1,000 people with the condition.
How strong is the evidence linking allergic rhinitis to migraine?
The evidence is robust, based on 10 studies with over 4.8 million participants. The association remained consistent across different study types and age groups.
Should I tell my doctor if I have both allergic rhinitis and migraines?
Yes. The study authors recommend clinicians consider integrated management strategies for patients with both conditions, as they appear to be linked.
Key terms explained
Allergic rhinitis
Inflammation of the nasal passages caused by allergic reactions to substances like pollen, dust, or pet dander
Meta-analysis
A statistical method that combines results from multiple studies to produce a single, more precise estimate
Population attributable fraction
The proportion of migraine cases in the population that could be prevented if allergic rhinitis were eliminated
Source: A systematic review and meta-analysis on the risk of migraine in patients with allergic rhinitis. · DOI: doi: 10.3389/fmed.2026.1766176