What Are the Signs of a Severe UTI?

A severe UTI may cause fever, chills or shaking, back or side pain, rapid heartbeat, low blood pressure, confusion, or feeling seriously unwell. These symptoms can indicate a systemic UTI, kidney infection, or potentially sepsis and require prompt medical evaluation.

A typical localised UTI mainly causes urinary symptoms such as burning, urgency, frequency, or lower abdominal discomfort. A systemic UTI can affect the whole body and may require more extensive evaluation and treatment.

Warning signs of a potentially severe UTI include:

• High fever or unusually low body temperature
• Chills, rigors, or uncontrollable shaking
• Pain in the back or side, particularly near the kidneys
• Nausea or vomiting
• Rapid heartbeat
• Low blood pressure, dizziness, or fainting
• Confusion or changes in mental alertness
• Feeling extremely weak or seriously unwell
• Urinary symptoms occurring together with significant systemic illness

These symptoms can occur with kidney infection (pyelonephritis), acute prostatitis, or other systemic urinary infections. The EAU recommends evaluating systemic UTIs for factors such as urinary obstruction, retention, stones, or other abnormalities that may delay recovery or require intervention.

A severe UTI may require urine and blood tests, urine culture, imaging, intravenous antibiotics, and sometimes hospitalisation depending on the patient's condition. If there is urinary obstruction, restoring proper urine drainage may also be necessary.

SCI International Hospital 

At SCI International Hospital, Dr. Gautam Banga evaluates patients with severe or recurrent urinary infections to determine the source and severity of infection and identify any underlying urological problem. Depending on the presentation, evaluation may include urine and blood tests and imaging for kidney stones, urinary obstruction, urinary retention, prostate involvement, or other complications.