ACR (American College of Rheumatology)

The American College of Rheumatology (ACR) is a professional organization for doctors who specialize in diagnosing and treating arthritis and related diseases involving inflammation in the joints, muscles, and bones. It promotes research, education, and guidelines to improve patient care. The ACR also develops classification and diagnostic criteria used by healthcare providers worldwide to ensure consistent and accurate diagnosis of rheumatic conditions. Their work helps advance understanding of these complex diseases and supports healthcare professionals in providing effective, evidence-based treatment.