Can a urinary tract infection resolve on its own?

In most cases, urinary tract infections (UTIs) cannot resolve on their own. However, a few mild cases of UTIs may possibly heal without treatment. The ability of a UTI to resolve spontaneously mainly depends on the patient's immunity, the virulence of the infecting bacteria, and the infection site. When the patient's immunity is strong and the bacterial virulence is weak, if the infection is only in the upper urinary tract and symptoms are mild—such as slight frequency and urgency of urination—it may be possible for the infection to resolve spontaneously by drinking plenty of water and increasing urination to flush the bacteria out of the body. If the patient's immunity is weak, the bacterial virulence is strong, or the infection involves the lower urinary tract with more severe symptoms such as hematuria (blood in urine) or fever, the condition generally will not resolve spontaneously and timely medical attention is required. Doctors will select appropriate antibiotics based on examination and drug sensitivity test results.

Regardless of the severity of their condition, patients with UTIs are advised to seek timely medical care for targeted treatment to avoid delays that could lead to chronic inflammation. While waiting for medical consultation or treatment, patients can drink more water to increase urine output, which helps eliminate bacteria and promote recovery. Additionally, patients should maintain good personal hygiene, keep the perineal area clean and dry, and avoid bad habits such as holding in urine. If diagnosed with a UTI, patients should strictly follow their doctor's instructions regarding medication and not adjust the dosage or discontinue treatment on their own to ensure complete eradication of the infection.