The causes of urinary polyuria in women include physiological factors, urinary tract infections, urinary stones, overactive bladder syndrome, diabetes mellitus, kidney disease, and so on. 1. Physiological factors: drinking too much water or consuming diets containing caffeine and other diuretic effects, frequent urination; in addition, women in the menstrual period due to pelvic congestion, the bladder may appear to stimulate the symptoms, resulting in frequent urination. This phenomenon is physiological, without special treatment. 2. Urinary tract infections: pyelonephritis, cystitis, urethritis and so on. When urinary tract infection occurs, patients may have frequent urination and other symptoms. 3. Urinary stones: such as kidney stones, ureteral stones, etc. Stones stimulate the local mucosa can cause frequent urination, abdominal pain, hematuria and other symptoms. 4. Overactive bladder syndrome: manifested as simple urinary frequency, without urinary urgency, dysuria, lumbago and other symptoms. It is caused by excessive and frequent contraction of bladder urethral muscle, and the result of urinary system examination is usually normal. 5. Diabetes mellitus: the typical symptoms of diabetes mellitus patients are three more and one less, mainly manifested as more drinking, more eating, more urination, and less weight. 6. Kidney disease: chronic kidney disease patients with tubular reabsorption dysfunction, urine reabsorption decreased, increased generation, urinary symptoms; hypertensive nephropathy patients, due to high blood pressure caused by glomerulosclerosis, tubular reabsorption function, resulting in decreased urinary reabsorption, increased generation, urinary frequency and urination. To summarize, there are many reasons why women urinate more frequently, if you exclude physiological factors, you should consult a doctor in time, ask the doctor to clarify the cause of the disease, and follow the doctor’s instructions to carry out the appropriate treatment.