The pH value of urine is usually used to represent the acidity and alkalinity in urine examination, and high pH is usually caused by dietary factors, drug effects, disease factors and other reasons. 1. Dietary factors: the daily dietary structure of the intake of vegetable food too much, too little meat food, such as vegetarians, resulting in the oxidation of organic acids in the food in the body to produce less acidic substances, so that the alkali increased, resulting in high alkalinity of urine test. 2. Drug effects: gout patients taking sodium bicarbonate tablets in the course of treatment, because the drug is alkaline, there will also be a high urine test alkalinity. 3. Disease factors: renal tubular and glomerular diseases may lead to kidney excretion and reabsorption dysfunction, resulting in excessive alkaline substances excreted through the urine, resulting in high alkalinity in urine test. If you have high alkalinity in urine test, you should go to the hospital in time to clarify the cause of the disease and carry out effective treatment.