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Understanding sepsis
Audience: patients-public, students-learners ยท Review state: published
What it is
Sepsis is the body's life-threatening response to an infection. Instead of just fighting the germs, the immune response turns against the body's own tissues and organs, which can lead to organ failure and death if not treated quickly.
Any infection can trigger it - pneumonia, a urinary tract infection, a skin infection, even a small wound. It is a medical emergency, not a condition to watch at home.
Who is at risk
Anyone can develop sepsis, but risk is highest in adults over 65, babies under one year, people with weakened immune systems, and those with chronic conditions such as diabetes, lung disease, cancer, or kidney disease.
People who have recently had surgery, a hospital stay, or a severe infection are also at higher risk.
Symptoms
Warning signs include a high or very low temperature, shivering, a fast heart rate, fast breathing, confusion or disorientation, extreme pain or discomfort, and clammy or mottled skin. In children, look for unusually fast breathing, fits, skin that looks mottled or blue, and a child who is very hard to wake.
Someone with an infection who suddenly gets much worse, or just seems very unwell and not themselves, needs urgent assessment - saying 'I feel like I might die' is a recognized warning sign worth taking seriously.
Treatment and prevention
Sepsis is treated in hospital with intravenous antibiotics and fluids, started as fast as possible, sometimes with oxygen and medicines to support blood pressure. Many people recover fully, though recovery can take time, and severe sepsis can leave lasting effects.
Prevention is about preventing and promptly treating infections: keeping vaccinations up to date, good wound care, hand hygiene, and seeking care early when infections are not improving.
Limitations
General educational overview, not medical advice and not a diagnosis. Suspected sepsis is an emergency - call emergency services or go to an emergency department immediately.