Children generally do not have foamy urine, if they have foamy urine, there are generally the following situations: 1. If the child has symptoms of drinking, eating, urinating, and losing weight, parents are advised to take the child to the hospital to check the blood sugar. 4. kidney disease can also produce foamy urine, if the child is accompanied by lower limbs, facial edema and other symptoms, parents are advised to take the child to the hospital to check the kidney function and urinary routine.