Understanding Gout: Uric Acid Crystals and Joint Inflammation #3599083 (License: Personal Use)

This anatomical diagram depicts a cross-section of an inflamed joint affected by gout, where excess uric acid has precipitated into needle-shaped monosodium urate crystals. The surrounding tissue appears red and swollen, indicating acute inflammatory response, with labels in Chinese identifying both uric acid and its crystalline form. The inset connects this microscopic pathology to the macroscopic symptom-typically a painful, tender joint, often the big toe.

Used on health education pages, rheumatology resources, or patient-facing content about gout pathophysiology; matches user intent to understand causes, symptoms, or mechanisms of gout.