If you find foam in your urine, you need to observe it dynamically or go to the hospital for examination. If it is found once by chance, there is no need to panic, just drink more water and urinate more to observe whether there is still foamy urine, if it does not appear after drinking more water, it is mostly due to concentrated urine, just drink more water appropriately. However, if it occurs frequently for a long time, it is recommended to go to the hospital for examination and quantitative urine protein testing to understand whether there is proteinuria, which is mostly caused by kidney disease and requires hospitalization if it is determined to be caused by kidney disease. If there is excessive activity, high protein diet or elevated body temperature, urinary tract infection, etc., it can also cause increased foam in the urine. For example, if it is caused by infection, it needs to be treated with oral cephalosporin or fluoroquinolone antibiotics to treat urinary tract infections, and after excessive exercise, it needs to be properly reduced and reviewed after rest.