The pain in the urethra or vagina after peeing after coitus usually refers to the pain in the urethra or vagina after coitus, which is mainly considered to be related to the injury of sex organs, inflammation stimulation, urinary tract obstruction and other factors. 1. Sexual organ injury: too rough action during intercourse, or the use of some sex toys, may damage the sexual organs and the urethra, and then the symptoms of pain in the lower part of the urinary tract. 2. Inflammatory stimulation: not doing a good job of hygiene during intercourse, resulting in patients with urethritis, cystitis, vaginitis or glansitis and other diseases, may also occur when the symptoms of pain during urination. 3. Urinary tract obstruction: such as urinary stones, foreign bodies, etc., can lead to increased pressure during urination, and then the symptoms of pain in the lower part of the symptoms. 4. Other diseases: such as prostatitis in men, endometritis in women, tumors and other diseases, can also trigger the symptoms of pain during urination. There are many other causes of this symptom. It is recommended that the patient should consult a doctor in time to confirm the cause of the disease, and then follow the doctor’s instructions for treatment.