During an attack, the skin over the affected joint may become red, shiny, and warm. In advanced cases, deposits of uric acid crystals called tophi can form under the skin. These hard lumps can eventually break through the skin, causing visible deformities and increasing the risk of infection.

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.