Urine pH 7.5 belongs to the normal range. Normally, the pH of urine fluctuates between 4.5 and 8, which is related to diet or medication, for example, patients who eat meat for a long time will have acidic urine, which is below 7, while patients who eat a vegetarian diet or consume a lot of vegetables for a long time will have urine pH higher than 7. The pH of urine is also in a dynamic process of change, rather than a constant indicator, such as taking alkaline drugs, commonly used drugs to neutralize stomach acid, such as sodium bicarbonate tablets, magnesium aluminum carbonate tablets and other drugs, can raise the pH of urine. If acidic drugs are taken, such as ammonium chloride, the pH of the urine can be lowered. For example, when a urinary tract infection occurs, the pH of the urine is relatively low, which can produce a more pronounced irritation that leads to frequent and urgent urination, and the treatment requires the use of sodium bicarbonate to alkalize the urine to combat the irritation and reduce the symptoms of frequent urination.