MRSA

Also called Meticillin-resistant Staphylococcus aureus

MRSA (meticillin-resistant Staphylococcus aureus) is a type of bacteria that is resistant to several widely used antibiotics. Many people carry it on their skin or in their nose without any problems. It can cause infections if it gets into the body, for example through a wound, and is more common in hospitals and care homes.

Last updated Nov 9, 2026

What it is

Some hospitals screen patients before planned operations. People who carry it may be given a skin wash and nasal cream to clear it.

MRSA infections can still be treated with the right antibiotics. Good hand hygiene helps stop it spreading.

Common signs

  • Usually no symptoms if carried
  • A red, swollen, painful area of skin
  • Pus or boils
  • High temperature with deeper infections

How it is usually diagnosed

  • Swabs from the nose, skin or a wound
  • Blood or other samples if an infection is suspected

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Swab results
  • Antibiotic sensitivity results
  • Decolonisation treatment dates

Questions to ask your doctor

  • Do I need treatment to clear MRSA before my operation?
  • Which antibiotics work for my infection?
  • How can I avoid passing it on?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Spreading redness with fever, fast heartbeat, confusion or feeling very unwell: call 112, it may be sepsis

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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