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Pus Color and Infection

Published in Infection Diagnosis 2 mins read

What Color Is Good Pus?

Pus, a byproduct of the body's fight against infection, isn't inherently "good" or "bad," but its color can offer clues about the infection's nature. While some sources suggest that white pus indicates a progressing infection, this is an oversimplification. The color of pus varies depending on the type and stage of infection and is not a reliable indicator of its severity or treatment needs.

The appearance of pus can range significantly. Common colors include:

  • White/Yellow/Yellow-Brown: These are frequently observed colors in pus. They represent a common inflammatory response to infection. A light yellow discharge may also be present, even in the absence of a significant infection. The appearance of pus, regardless of the color, should prompt you to seek medical advice, especially if it's accompanied by other symptoms.

  • Green: Green pus typically indicates the presence of Pseudomonas aeruginosa, a bacteria often resistant to certain antibiotics. Medical attention is crucial when green pus is present.

  • Brown: Brown pus often indicates older, necrotic (dead) tissue. This suggests a more advanced stage of infection and requires prompt medical care.

The presence of blood alongside pus may further complicate interpretation. This is an additional reason why expert medical evaluation is essential.

It's crucial to remember that pus itself does not serve a healing function. It's merely a byproduct of the immune system's battle with infection. The presence of pus always indicates an infection, and it’s vital to seek medical attention for proper diagnosis and treatment, rather than relying on color alone to judge its severity.

Several sources, however, erroneously portray white pus as being 'good', while others emphasize that the presence of pus indicates an infection requiring treatment. The color of pus alone is not a sufficient indicator of its 'goodness' or 'badness'.

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