Frequent urination in a 7-year-old girl is a manifestation of frequent urination. The appearance of this symptom may be related to factors such as drinking too much water, lower temperatures, mental stress, urinary system diseases and other diseases. 1. Drinking too much water: Drinking too much water in a short period of time can lead to an increase in the volume of urine, which in turn leads to the phenomenon of frequent urination. 2. Lower temperatures: in the cold winter, the human body will increase the amount of urine stress, frequent urination is a normal physiological phenomenon. 3. Mental tension: mental state is too nervous will have a certain impact on the nervous system, can also trigger frequent urination. 4. urinary system diseases: urethritis, cystitis, pyelonephritis, bladder stones, kidney stones, and neurogenic urinary frequency and other diseases, can trigger frequent urination. 5. Other diseases: such as diabetes and other diseases, can trigger frequent urination. 7-year-old girl urinary frequency may also be caused by other factors, the phenomenon described above, must pay attention to timely access to regular hospitals to clarify the cause, and follow the doctor’s instructions for treatment.