Bedwetting in 7-year-old girls may be caused by physiological factors, acute urinary tract infection, neurogenic bladder and other factors. 1. Physiological factors: 7-year-old girls will wet the bed if they play excessively during the day and sleep too deeply at night, which is only an occasional occurrence without other clinical manifestations and does not require special treatment. 2. Acute urinary tract infection: for example, acute cystitis, usually associated with poor hygiene, can be an acute attack, the infection is more serious, resulting in increased sensitivity of the bladder mucosa, resulting in urge incontinence, which will make the girl urinate on the bed, accompanied by urinary frequency, urinary urgency, urinary pain and other symptoms. 3. Neurogenic bladder: may be related to diabetes, brain tumors and other factors, can lead to damage to the central or peripheral nerves that control the bladder, it will cause bedwetting, may also have difficulty urinating, urinary retention. 7-year-old girl bedwetting, 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.