Symptoms
By Mayo Clinic Staff
Signs and symptoms of a kidney infection may include:
Fever
Back, side (flank) or groin pain
Abdominal pain
Frequent urination
Strong, persistent urge to urinate
Burning sensation or pain when urinating
Pus or blood in your urine (hematuria)
Urine that smells bad or is cloudy
When to see a doctor
Make an appointment with your doctor if you have any signs or symptoms that worry you. Also make an appointment if you're being treated for a urinary tract infection but your signs and symptoms aren't improving.
Severe kidney infection can lead to life-threatening complications. Seek immediate medical attention if you experience typical kidney infection symptoms combined with bloody urine or nausea and vomiting.