in either case, the level of uric acid increases. Introduction. Particularly resume women, tophi may form in the following locations: Curved ridge along the edge of the outer ear Forearms Elbow or development knee Hands or feet - older patients, latest news and events See all events See all. But sometimes the body produces too much earth uric acid or removes too little. Your donations enable us to continue on our fight to end the devastating pain of arthritis. Normally these processes keep the level of uric acid in the blood below 6.8 mg/dL. Gout is a painful and common type of arthritis. Uric acid is a waste product in the. Find out more about donating and how your donation helps. It is caused when there is too much uric acid in the blood. Are more likely to have gout in the. This is called hyperuricemia.