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Updated: Nov 11, 2025

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Published on: March 1, 2024
Association between Hidradenitis Suppurativa and Inflammatory Arthritis: A Systematic Review and Meta-Analysis
Nouf Almuhanna1,2, Alexandra Finstad3, Raed Alhusayen1,2
1Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
Background:
Several studies report a high prevalence of inflammatory arthritis among hidradenitis suppurativa (HS) patients.
Objectives:
To study the association between HS and inflammatory arthritis.
Methods:
The systematic review and meta-analysis were performed according to the PRISMA guidelines to identify the association between HS and inflammatory arthritis, spondyloarthritis, ankylosing spondylitis (AS), and rheumatoid arthritis (RA).
Results:
Seven studies were entered in the analysis, with 200,361 HS patients and 385,599 controls. Pooled analysis illustrated a significantly increased risk of inflammatory arthritis in HS patients compared to controls (odds ratio [OR] 3.44; 95% confidence interval [CI] 1.92-6.17). There was also a statistically significant association between HS and spondyloarthritis (OR 2.10; 95% CI 1.40-3.15), and between HS and AS (OR 1.89; 95% CI 1.14-3.12). Moreover, pooled analysis showed a statistically significant association between HS and RA (OR 1.96; 95% CI 1.28-2.98).
Conclusions:
Our findings show that HS patients have a 3-fold increased risk of developing inflammatory arthritis. HS patients are specifically at a higher risk for spondyloarthritis, its subtype AS, and RA.
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