The common causes of urinary tract infections in women are as follows: 1. lack of attention to personal hygiene, the female urethral orifice is located in the vaginal vestibule is easily contaminated and complicated by urinary tract infections, especially in patients with vaginitis. 2. sexual partners with genital infections or circumcision. 3. middle-aged and elderly women with declining estrogen levels, or frequent overuse of antiseptic vulva lotions, resulting in dysbiosis of the normal flora of the vulva. 4. treatment is not standardized The treatment is not thorough, not treated in a regular hospital, often empirical medication, multiple changes in antibiotic treatment. 5, accompanied by diabetes, adenoidal cystitis, neurogenic bladder, paraurethral cyst, urethral meatus, urethral mucosal prolapse and other diseases that can easily induce urinary tract infection exist.