Women's Conditions

Why do I get cystitis after sex? Gynecologist in Seoul, Korea

The short answer

During sex, bacteria from the vaginal and anal area can be pushed toward the urethra, which is short in women, so they reach the bladder easily. Urinating soon after sex, staying hydrated and avoiding irritating products help. If cystitis keeps returning, we also check for vaginitis and STDs.

Prevention tips

  • Urinate within about 30 minutes after sex
  • Drink enough water
  • Avoid spermicides and scented products if they irritate you
  • Treat any vaginitis

For frequent episodes, your doctor may discuss preventive options. See bladder infection.


Answered by Dami Women's Clinic (다미산부인과의원), Yeouido, Seoul · Dr. Ko Sang-hyun, OB/GYN. General information, not a diagnosis. Emergencies in Korea: call 119. Medical disclaimer · International Patient Center