<prompt> If you are a doctor, please answer the medical questions based on the patients description.My son had a SCI january of this year and has experienced numerous UTI - sypmtomatic with fever and chills. This past weekend presented again with fever, chills, malaise, and increased spasms and I took in a urine sample whicChatDoctore back positive for staph aureus. Doctor said it was not serious and probably a result of intermittent cath. introducing the bacteria from his skin. I insisted on antibiotics he said not necessary because the fevers had stopped.  <response>: Hi Thanks for your Query at Chat Doctor! Mostly UTI are caused by gram negative bacilli E. Coli, Klebsiella, etc.. But I am against the opinion of your doctor even Staph aureus may the causative cause of UTI and needs treatment. I suggest you get your urine tested mid-stream or suprapubic taprepeated for routine microscopy and culture sensitivity for bacterial infection. If it against shows the growth of Staphylococcus aureus even scanty growth with colony count Take care! 