Can a UTI Go Away on Its Own?

Some mild, uncomplicated bladder infections may improve without antibiotics, but it is difficult to predict which ones will clear on their own. Symptoms can also have causes other than a bacterial UTI, so medical guidance may be needed. An untreated bladder infection can sometimes spread to the kidneys, although the likelihood varies. Fever, chills, pain in the back or side, vomiting, confusion, or feeling very unwell require prompt medical assessment. If symptoms worsen, do not begin improving within about 48 hours, or return after improving, contact a healthcare professional. They can determine whether antibiotics or another treatment is appropriate. People who are pregnant, older, have diabetes, are immunocompromised, are male, are children, or have urinary tract or kidney problems should seek medical advice promptly if they may have a UTI, because evaluation and treatment needs can differ.