During intercourse, because the vagina and urethra are relatively close to each other, there may be a chance of urinary tract infection, you can first observe, drink a lot of warm water to prevent such a situation. At the same time, as far as possible during coitus, do not stimulate the urethral opening with your hand, so as not to cause damage to the urethra, causing more frequent urination. After coitus, wash the vulva with warm boiled water as much as possible, so as to avoid cross-infection and also prevent the chance of urinary tract infection. As long as there is no frequent or urgent urination in normal times, you can observe it regularly. But if there is frequent urination, urgent urination, need to go to the hospital urine routine test, according to the test results need to take certain oral anti-inflammatory drugs, change the current situation of increased urination.