The causes of recurrent urinary tract infections in women are as follows:1, the treatment is not complete, not standardized, the general antibiotic treatment of urinary tract infections for 3-5 days, the symptoms are mostly relieved, at this time there are still bacteria in the urinary tract, and it is still necessary to continue to use medication to treat the patient, but the patient more than self-stopping, and then after the onset of the disease again the patient according to the experience of the medication, and not to the hospital for formal medical treatment.2, it may be accompanied by tumors in the urinary system, stones, adenohydrocystitis, and other diseases.3, Urethral mucosal prolapse, urethral caruncle, paraurethral cysts lead to poor urination, which can easily trigger bacterial infections.4. Decrease in estrogen levels in menopausal women, and changes in the physical and chemical environment of the vulva.5. Accompanied by vaginitis or a spouse with a phimosis or genital infections.6. Accompanied by diabetes mellitus, renal disease and other underlying diseases.7. Excessive use of antiseptic washes to clean the vulva, which destroys the normal bacterial flora of the vulva.