Which condition is an example of non-inflammatory joint pain?

Which condition is an example of non-inflammatory joint pain?

• A. Fibromyalgia
• B. Gout
• C. Septic arthritis
• D. Rheumatoid arthritis

Answer: (A)

The key idea is distinguishing pain that comes from actual joint inflammation from pain that is widespread or centralized without joint inflammation. Fibromyalgia fits the non-inflammatory pattern: widespread musculoskeletal pain with no objective joint inflammation, normal inflammatory labs, and features like fatigue, sleep disturbance, and tender points rather than swollen, red, or warm joints. It reflects a syndrome of amplified pain processing rather than true inflammatory arthritis. In contrast, the other conditions involve clear joint inflammation: gout causes an acute inflammatory attack in a hyperuricemic joint; septic arthritis is infection-driven joint inflammation with fever and rapid joint swelling and warmth; rheumatoid arthritis is an autoimmune inflammatory arthritis with synovitis and persistent joint swelling and morning stiffness. Therefore, fibromyalgia is the best example of non-inflammatory joint pain.

The key idea is distinguishing pain that comes from actual joint inflammation from pain that is widespread or centralized without joint inflammation. Fibromyalgia fits the non-inflammatory pattern: widespread musculoskeletal pain with no objective joint inflammation, normal inflammatory labs, and features like fatigue, sleep disturbance, and tender points rather than swollen, red, or warm joints. It reflects a syndrome of amplified pain processing rather than true inflammatory arthritis.

In contrast, the other conditions involve clear joint inflammation: gout causes an acute inflammatory attack in a hyperuricemic joint; septic arthritis is infection-driven joint inflammation with fever and rapid joint swelling and warmth; rheumatoid arthritis is an autoimmune inflammatory arthritis with synovitis and persistent joint swelling and morning stiffness. Therefore, fibromyalgia is the best example of non-inflammatory joint pain.