The causes of stinging pain in the female urethra, commonly have urethritis or urinary tract infection, often related to the following situations: first, sitting for too long; second, eating spicy and irritating food; third, holding urine; fourth, underwear if worn too tight, or underwear is chemical fiber fabric, can cause this situation, so usually must pay attention to clean. In addition, it is important to note that the underwear should choose cotton fabric, breathability is better, can not wear tight pants. If you are studying or sitting in a job of this nature, you must get up for 0.5-1 hours and move around. In addition, be sure to drink more water and pay attention to the cleanliness of the vulva. If there is an infection, it is best to go to the hospital to check the urine routine and give timely treatment to avoid unnecessary complications.