Sepsis Can Look Like ‘Just a Bad Infection’: Expert Lists Warning Signs Families Need to Know

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It started as an ordinary infection: a urinary tract infection, perhaps, or pneumonia, or a wound that was slow to heal. There was fever, chills and body aches. Antibiotics were started, and the family settled in to wait for it to run its course.

Then the patient got worse.

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That moment, when a person is clearly deteriorating from what looked like a routine illness, is the one Dr Niharika Reddy C, Senior Consultant and HOD - Emergency Medicine at KIMS - Arete Hospital, never wants families to underestimate. In an emergency department, it is often when doctors begin to suspect sepsis. Here, she explains the sepsis warning signs to look for.

When an Infection Becomes Something Far More Serious

"It may have started as a urinary infection, pneumonia, a wound infection or even an infection in the abdomen. The person may have had fever, chills and body ache. The family understandably assumes that the infection is taking its course and that antibiotics or a little more time will solve the problem," said Dr Reddy.

But sometimes the body's response to an infection becomes far more serious. That is when we start worrying about sepsis.

"Sepsis is not simply a 'very bad infection'. It is a life-threatening response to infection that can cause organ dysfunction. It can progress rapidly to shock and organ failure if it is not recognised and treated promptly," explained Dr Reddy.

The difficulty is that there is no single symptom that announces, 'This is sepsis.' I pay particular attention to changes in how the person is functioning overall."

When the Person Suddenly Seems Very Different

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One of the signs families may notice first is a change in behaviour or alertness.

"Someone who normally talks normally may suddenly seem confused, unusually sleepy, disoriented or difficult to wake. In an older person, this can sometimes be mistaken for weakness, ageing or simply being unwell," added Dr Reddy.

A sudden change in mental state during an infection deserves attention. Confusion is one of the recognised warning signs of sepsis."

Breathing That Becomes Faster or Harder

Do not focus only on whether the person is complaining of breathlessness.

"Sometimes the breathing simply becomes noticeably faster. You may see the chest moving rapidly, or the person may struggle to speak comfortably because they are short of breath," warned Dr Reddy.

Rapid or difficult breathing can be a sign that the body is under significant stress and should not be dismissed as merely part of having a fever."

Cold, Clammy or Pale: Sepsis Without a High Fever

Families often associate serious infection with feeling hot and having a high temperature. But sepsis does not always present with a high fever.

"A person may instead feel unusually cold, have shivering, clammy or sweaty skin, or develop pale, mottled or bluish-looking skin. These changes can indicate problems with circulation and require urgent medical assessment," added Dr Reddy.

A Sign You Can Check at Home: Urine Output

"This is a simple thing that families can sometimes observe at home.

If someone with an infection is passing significantly less urine than usual, particularly when accompanied by weakness, confusion or worsening illness, it should not be ignored.

Reduced urine output can occur when the body's circulation and kidney function are being affected."

'I Have Never Felt This Unwell Before'

"There are patients who will tell you, 'I have never felt this unwell before.'

They may have severe body pain, profound weakness or a feeling that something is seriously wrong, even when the original infection seemed relatively straightforward.

That overall deterioration matters. Sepsis can produce extreme pain or discomfort, and the combination of symptoms is often more informative than any single symptom in isolation."

Don't Wait for the Infection to Turn Dramatic

"Another misconception is that sepsis happens only in someone who has been sick for several days. It can develop from infections in the lungs, urinary tract, skin or gastrointestinal tract, and almost any infection can potentially lead to sepsis," warned Dr Reddy.

Older adults, very young children, pregnant women, people with weakened immune systems and those with chronic illnesses are among those at higher risk, but sepsis can affect anyone."

Look at the Trajectory

The most important message for families is to look at the trajectory.

"If someone with an infection is getting progressively worse rather than better, becoming confused, breathing rapidly, becoming unusually cold or clammy, passing very little urine, or developing severe weakness or pain, do not simply wait for the next dose of medicine to take effect," warned Dr Reddy.

Seek urgent medical attention and tell the healthcare team that the person has an infection and is deteriorating. Early recognition and treatment are critical in sepsis."

Message From This Expert

In emergency medicine, one of the most useful pieces of information a family can give us is often not a number on a thermometer, but what Dr Reddy says, "This person is not behaving or looking like themselves, and they are getting worse."

That change can be the warning sign we need to act before a serious infection becomes a life-threatening emergency.

Disclaimer: The information provided in this article is for general informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or a qualified healthcare provider with any questions you may have regarding a medical condition.