A kidney infection is a type of urinary tract infection (UTI) that can affect one or both kidneys. Symptoms of a kidney infection usually develop quickly over a few hours or days. The signs of a kidney infection include:
- Fever
- Chills
- Pain in the lower back, side, or groin
- Pain or burning sensation when urinating
- Need to urinate frequently
- Strong, persistent urge to urinate
- Blood or pus in the urine
- Cloudy or smelly urine
- Nausea and vomiting
- Loss of appetite
- Fatigue or weakness
If you have any of these symptoms, it is important to see a doctor right away. A kidney infection can be serious if not treated promptly with antibiotics or other medicines.
