Children walking accidentally peeing out may be a normal physiological phenomenon, or it may be due to urinary tract infection or vulvovaginitis caused by abnormal phenomena. 1. Physiological phenomenon: If a child under 3 years of age walks accidentally pee out, it may be because the child’s musculo-neurological system is not fully developed, bladder control ability is poor, will not be able to control the appearance of urination, so lead to walk accidentally pee out of the situation. 2. Urinary system infection: If a child’s urinary system is infected by pathogenic bacteria, the stimulation of inflammation will lead to frequent urination, urinary urgency, urinary pain and other symptoms, may also appear to walk accidentally peeing out of the situation. 3. vulvovaginitis: if the child is a woman, walking accidentally peeing out may also be vulvovaginitis caused by vulvovaginitis, vulvovaginitis on the urethra produces a stimulus, there may not be able to hold back the urine, walking accidentally peeing out of the situation. Children walking accidentally peeing out, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.