The normal value of postprandial uric acid is generally 150~416μmol/L for men and 89~357μmol/L for women, and it is abnormal if it is higher or lower than this level. Uric acid is a purine metabolite, normal blood uric acid level for men 150~416μmol/L, women 89~357μmol/L, the general blood uric acid test for the fasting test. High uric acid is due to the purine metabolism disorder in the body, a metabolic disease caused by the increase of uric acid in the blood. Considering that the patient may eat too much high purine food such as various kinds of seafood, beer, etc., purine large amount of decomposition into uric acid caused by high uric acid. If the uric acid is high, the clinical symptoms of gout may appear. Normally in the diet need to pay attention to drink more water, the diet should be light, easy to digest, do not eat animal offal, seafood, etc., or you can use drugs to control, such as febuxostat, allopurinol, benzbromarone, etc.. If the uric acid is low, it may be related to the patient’s diet, for example, when the patient eats too little or dieting, picky eating and other reasons lead to a reduction in purine intake, so the body’s uric acid level will fall. It may be seen in some chronic wasting disease. It is recommended that patients with abnormal blood uric acid go to the hospital in time to avoid delaying their condition.