ACR-EULAR Gout Classification Criteria

Provides formal diagnostic criteria for gout.

The Acute Gout Diagnosis Rule can help rule in or rule out gout, reducing the need for synovial fluid in highly likely patients and encouraging a broad differential in gout-unlikely patients using mostly clinical criteria.

Step One - Entry Criterion

≥1 episode of swelling, pain, or tenderness in a peripheral joint/bursa

Step Two - Sufficient Criterion

Presence of MSU crystals in a symptomatic joint, bursa, or tophus

Step Three - Classification Criteria

Pattern of joint/bursa involvement during episodes


Source: Neogi T, et al. 2015 Gout Classification Criteria: An American College of Rheumatology/European League Against Rheumatism Collaborative Initiative. Arthritis & Rheumatology. 20015; 67: 2557–2568. doi: 10.1002/art.39254