<s>[INST] Can antibiotics cause a UTI? [/INST] Oral antibiotics may cause changes in the bacteria in the vagina. Changes in vaginal bacteria may increase the risk of getting frequent UTIs (also known as recurrent UTIs). Source: THE THREAD . Link: https://blog.walgreens.com/health/general-health/uti-faqs-important-facts-on-urinary-tract-infections.html. Field: Urology. Disease: Urinary Tract Infection </s>