Kidney Infection Symptoms - Kidney Infection

Frequent urination
Strong, persistent urge to urinate
Burning sensation or pain when urinating
Abdominal pain or pressure
Cloudy urine with a strong odor
Pus or blood in your urine (hematuria)
Inability to urinate (urine retention)
Need to urinate during the night (nocturia)
Back, side (flank) or groin pain
Fever

Severe kidney infection also may involve:
High fever - body temperature of 101 F (38.3 C) or greater
Shaking chills
Night sweats
Extreme fatigue
Nausea or vomiting
Confusion
In infants and young children, signs and symptoms of kidney infection may include:

Irritability
Loss of appetite
Loose bowel movements
New episodes of bed-wetting (enuresis)

In older adults, mental changes, such as confusion, sometimes are the only signs of kidney infection