How Long Does a UTI Last with Antibiotics?

Most UTIs clear up within 3-7 days when treated with appropriate antibiotics. Simple uncomplicated UTIs typically show symptom improvement within 24-48 hours of starting treatment. Women with uncomplicated cystitis often receive 3-day antibiotic courses, while complicated UTIs may require 7-14 days of treatment. Men and pregnant women usually need longer treatment periods of 7-10 days. Studies show that 85-95% of uncomplicated UTIs resolve completely with proper antibiotic therapy. If symptoms persist beyond 72 hours or worsen during treatment, contact your healthcare provider as this may indicate antibiotic resistance or complications requiring different treatment approaches.

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