Possible causes of increased urine foam: 1, urine concentration, which is not the occurrence of urinary system diseases, only because of too little water, sweating, diarrhea, vomiting, etc. resulting in more fluid loss, not timely replenishment of water and lead to varying degrees of urine concentration, coupled with standing urination, concentrated urine and water shock can produce more foam, at this time is not accompanied by any pain, urinary system When patients with kidney disease have more protein in their urine, there will be more foam during urination, accompanied by swelling of the limbs, face and other parts of the body or abnormal changes in kidney function, abnormal changes in urine volume, etc. Further quantitative urine protein testing is needed to confirm the diagnosis; 3. When suffering from urinary tract infection, the presence of pus cells, white blood cells or the presence of trace amounts of protein can increase urine foam. The symptoms of urinary tract irritation, such as urinary frequency, urinary urgency, painful urination, etc., need further urine routine and urine culture examination to confirm the diagnosis.