UTI's don't just come from Catheter use. There can ba a variety of cause frim improper wiping (E colli stuff) to unknown. My GCP always tries to identify type of bacteris or is it blood in Urine (not uncommon) and after urine is sent to lab, sometimes changes my AB to a different one that can better "attack" bacteria.I saw a Urologist for a persistent problem and loved that doctor, so competent. I am not catherized and am self-toileting. )I can transfer by my self - no oone is here 8-6.