<s>[INST] Can a UTI cause stomach pain? [/INST] Yes, a UTI can cause pain in the abdomen or belly. This is a fairly common sign of UTIs, even simple bladder infections. The lining of the bladder and urethra become irritated when infected, and this irritation can cause pain in the lower abdomen, pelvic area and lower back. 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>