Symptoms UTI types Organ involved Symptoms Kidney (acute pyelonephritis/renal abscess/pyonephrosis/emphysematous pyelonephritis) Flank pain on involved side Fever with chills Nausea Vomiting Tenderness on palpation Bladder (cystitis) Lower abdominal pain Frequent small volume urination Burning micturition Blood in urine Prostate (Prostatitis/abscess) Fever with chills Burning micturition Pus in urine Urethra (Urethritis) Pus discharge Burning micturition Causes Continue reading