There are several reasons for more foam in urine: first, if you drink less water, the body forms hypertonicity, the foam of urine may also be more; second, increased urine protein, mostly seen in patients with glomerulonephritis, chronic renal insufficiency, due to kidney leakage of protein resulting in increased foam in urine; third, urinary tract infection when there are more bacteria in the urine, more protein is also easy to foam; fourth, increased urine sugar, due to oxidation also Fourthly, the increase of urine sugar, due to the oxidation effect is also easy to foam. Therefore, when there is a lot of foam in the urine, we should first check the urine routine, and then check the 24-hour urine protein quantification to see if there is kidney damage and kidney insufficiency caused by hypertension, diabetes, glomerulonephritis and so on. It is also necessary to exclude the physiological thirst, which is caused by the increase of urine foam due to low water intake, and the diagnosis can be clarified by checking the urine routine, kidney function and liver function.