High uric acid, a medical condition known as hyperuricemia. It is a condition that is caused when your kidneys do not work properly and fail to eliminate uric acid effectively. The excess amount of uric acid in the blood can form kidney stones, and if this is not treated at the right time, it can also lead to kidney failure. The high uric acid levels can also lead to the development of gout. It is a condition that causes pain and sometimes also leads to arthritis.