Children’s underwear yellow, the first thing to consider is that it is due to urinary tract infection caused by yellow underwear, this situation parents should take the child to the nephrology department of the children’s hospital in a timely manner, the routine urine test. If there are leukocytes and pus cells in the urine routine, this situation is considered to be caused by urinary tract infection, you can take antibiotics such as cephalosporin for anti-urinary tract infection treatment. Usually after 1-2 weeks of application, the situation will be significantly improved. This situation should be ruled out belonging to the damp-heat body caused by the urine routine is normal, but the urine color is dark yellow, often mouth and tongue sores, mouth and lips are also more red, parents can give the child appropriate to drink more warm boiled water, eat less fried, greasy food, and can give the child to take heat detoxification and dampness Chinese patent medicines, such as Sanhuang tablets.