Women’s urinary tract infections, take medicine does not work, then the possible causes and treatment: 1, drug-resistant bacterial infection, if it is drug-resistant bacterial infection, then the drugs taken may have drug resistance, of course, the treatment is ineffective. It is recommended to go to the hospital to retain the middle urine to do bacterial culture and drug sensitivity test, so that it can be clear what bacterial infection, and to which drugs are sensitive and resistant to which drugs. It is recommended to choose sensitive antibiotics for treatment so that it can heal quickly.2. Non-specific infections, such as those caused by mycoplasma, chlamydia or mycobacterium tuberculosis, are not detectable by conventional urine tests and other tests, and require specialized cultures to determine and then specialized medications for treatment. If the infection is caused by mycoplasma or chlamydia, it needs to be treated with azithromycin or treated with one oral capsule of roxithromycin twice a day. If the infection is caused by Mycobacterium tuberculosis, oral isoniazid tablets 0.3g taken orally once a day are required. You can also take rifampicin capsules 0.45g orally once daily for six months.