The difference between uric acid and serum uric acid is that uric acid is a substance, while serum uric acid is a content value. Uric acid refers to the human body nucleic acids, other purine metabolites and purines in food under the action of enzymes to decompose the end product, and serum uric acid refers to the human body peripheral blood serum contains uric acid content of this substance, under normal circumstances, men’s serum uric acid 150 ~ 416 μmol / L, women’s serum uric acid 89 ~ 357 μmol / L. Uric acid metabolism disorders can lead to patients with hyperuricemia and gout, hyperuricemia usually has no obvious clinical symptoms, but gout can cause patients with severe pain in the joints, joint swelling and fever and other symptoms. It is recommended that patients with abnormal blood uric acid go to endocrinology, rheumatology and immunology departments of regular hospitals for detailed consultation.