Taking Dagliflozin may cause foamy urine. However, there are many reasons for the emergence of foamy urine, and it is also necessary to exclude the foamy urine caused by other factors of kidney disease. 1. Dagliflozin is a hypoglycemic drug, by increasing the excretion of urinary glucose to achieve the effect of lowering blood glucose, if the blood glucose itself is high, the drug works in the process, there will be a large amount of urinary glucose into the urine, the concentration of glucose in the urine rises, it will change the nature of the urine, triggered by foamy urine. Nausea, hypoglycemia adverse reactions may occur after taking the drug, allergic to the product is prohibited. 2. Secondly, diabetes itself caused by renal impairment complications is a very common phenomenon, if diabetic patients have been impaired renal function, proteinuria will also form foamy urine. 3. In addition, the increase in urinary sugar excretion will lead to the urinary system is prone to the risk of infection, because the increase in glucose in the urine, will easily induce microbial growth, causing urinary tract infection problems. This may also cause the symptoms of foamy urine. Therefore, the cause of foamy urine is very complex, not only the factors of drugs, but also may be due to the factors of the disease, need to be under the guidance of the doctor systematic treatment.