The possible causes of stinging pain after urination in women: First, acute urethritis, which can cause stinging pain after urination, accompanied by frequent urination, urinary urgency, and in severe cases, even with increased discharge from the urethra or with blood dripping and other symptoms, need to carry out routine urine laboratory tests to further confirm the diagnosis. Second, stones in the posterior urethra or stones in the bladder can cause pain after urination. It may be accompanied by abnormal urination, such as straining to urinate, bifurcation, interruption of urination, etc. It may be accompanied by hematuria in the naked eye, and CT examination of the bladder area is needed to clarify the presence of stones. Third, sexually transmitted diseases, such as gonorrhea, non-gonococcal urethritis, etc. Infection with gonococcus, mycoplasma, chlamydia, etc. through unclean sexual contact can cause pain after urination, or symptoms such as itching in the urethra, burning in the urethra, and secretion of large amounts of yellow pus from the urethra. All have a clear history of unclean sexual contact and require gonococcal culture or mycoplasma or chlamydia culture, etc., for further definitive diagnosis.