Acute urinary infection in women, which refers to acute urinary tract infection disease, may be caused by poor hygiene, prolonged urinary holding, medical factors, gynecological diseases and other factors. 1. Poor hygiene: not cleaning the lower body for a long time may lead to bacterial growth in the urethral region, into the urethra or bladder, it is easy to induce acute urinary tract infection disease, such as acute cystitis or acute urethritis. 2. Prolonged urinary holding: women hold their urine for a long time, resulting in urine retention in the bladder, may breed bacteria, it is easy to induce acute urinary tract infections, may also appear bladder stones. 3. Medical factors: for example, women with indwelling catheters for a long time, improper care, may induce acute urinary tract infections. 4. Gynecological diseases: such as vulvovaginitis or vaginitis, due to the urethral opening is closer to the vaginal intercourse, inflammatory substances into the urethra, it is easy to induce acute urinary tract infections. When women have symptoms of acute urinary tract infections, they should seek timely medical examination and treatment to avoid other complications.