Women's Conditions

Can a UTI go away without antibiotics? Gynecologist in Seoul, Korea

The short answer

Some very mild bladder infections settle on their own, but many do not, and untreated cystitis can spread to the kidneys (pyelonephritis), causing fever and a longer illness. A urine test and a short antibiotic course is quick and safer, especially if you are pregnant.

Drinking water helps flush the bladder but rarely cures an established infection. Seek care promptly, particularly if you have blood in your urine, fever, back pain or are pregnant.

See bladder infection and when a UTI is an emergency.


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