If a child’s foreskin head is red, if it is simply red and there are no other abnormal reactions such as urinary urgency, frequent urination and painful urination, it may be caused by hot weather, fire in the child, especially if the child drinks little water and urine irritation. This situation suggests washing it with water, you can turn the foreskin upwards, apply antibiotic ointment, such as erythromycin ointment, and just observe. If the foreskin is particularly red and swollen, accompanied by pain, urinary urgency, frequent urination, painful urination and fever, it is recommended to go to the pediatric surgery for an interview and laboratory tests for routine blood and urine. If the urine routine and blood routine leukocytes are relatively high, this condition is considered to be caused by infection of the urinary system. If the body temperature repeatedly exceeds 38 ℃ or more, it is recommended that the infusion treatment is better, antibiotics preferred cephalosporin.