The female vagina and urethra are not together, the urethra is above the vagina, they are both located in the vestibule of the female vagina, that is, the two sides of the labia majora between the rhombus-shaped area inside. Under normal circumstances, the urethra is above the female vaginal opening, because the female urethra is relatively short only 4-5cm, so when the vaginal infection is easy to affect the urethra, causing symptoms of urinary tract infection, manifested as frequent urination, urinary urgency and urinary pain. Women’s vaginal opening is located below the urethral opening, vaginal secretions increase, there is a fishy odor, vaginitis is easy to infect the urethra. Therefore, women with vaginitis need timely treatment.