Septic Arthritis Explained

Septic arthritis is a type of staphylococcal infection where a joint becomes infected with the Staphylococcal aureus bacteria.

The Staphylococcal aureus bacteria is common in humans and can often be found living in the nose, and on the skin of the buttocks and armpits.

In most cases Staphylococcal aureus bacteria live on humans without causing symptoms or complications like septic arthritis.

When people live with the bacteria and no symptoms they are said to be colonized. While around 20% of people are persistently colonized, more than 80% will be colonized at some point in their lifetime.

The Symptoms of Septic Arthritis

There are three main symptoms of septic arthritis. These are:

  1. Swelling and pain of a joint
  2. Red and tender skin around the joint
  3. A high fever of more than 38 degrees C (100.4F)

Find out more about septic arthritis here.

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