* <spoiler text="What are the two types of gout and which is more common?">The main type is primary gout which makes up 90% of all cases. In most cases of primary gout the specific enzyme defect is unknown but there is some enzyme abnormality which leads to hyperuricemia and symptoms of gout. In about 10% of cases rare cases the specific enzyme defect is known, but gout symptomatology is the main clinical finding.