Frequent urination in children may be a physiological phenomenon in many cases, parents should make a specific analysis, especially for small infants, the reason why they urinate more often, mainly and the body’s metabolism is strong, the body’s heat production increased, water metabolism is active, coupled with the smaller bladder volume of children, the number of urination will naturally increase accordingly. Careful parents may find that normal infants can sometimes urinate up to 15 times a day, about 10 times in early childhood, and up to 6-7 times a day in school-age children, while factors such as environmental temperature, water intake and different individual differences in each child will also have a certain impact on urination, and therefore cannot be generalized. Urinary tract infections are undoubtedly the most common cause of frequent urination in children, which is determined by the physiological and anatomical characteristics of the urinary system of small infants, such as the existence of the boy’s prepuce, the girl’s short and wide urethra vulnerable to fecal contamination and other factors, once the urethra is stimulated by inflammation, it can make the body’s urinary center is always in an excited state and lead to frequent urination phenomenon. Some children can also reflexively cause frequent urination due to the presence of congenital malformations, such as stones, foreign bodies, diverticula and other mechanical stimuli in the bladder. There may also be a cause, and that is neurogenic frequency of urination. Neurogenic dysuria is mainly manifested by an increase in the number of urinations per day without an increase in urine volume and a normal routine urine examination. The number of urination increases from the normal 6-8 times per day to 20-30 times per day, or even more than 10 times per hour, but the volume of urination is very small, sometimes only a few drops. After falling asleep, the frequency of urination disappears completely. During the day, when playing with beloved toys or watching favorite TV, the frequency of urination is significantly reduced. Often, before going to bed or when eating, the frequency of urination increases significantly. The most important and correct choice for parents is to pay attention to the phenomenon of frequent urination in children and go to the hospital early for some tests related to urinary routine, so as to clarify the diagnosis of the disease and give effective prevention and intervention.