What is the presence of pus on a wound?

The presence of pus in a wound typically indicates an infection, often caused by bacteria. Pus is a thick fluid composed of dead white blood cells, bacteria, and tissue debris, signaling the body's immune response to fight off the infection. It may also suggest the need for medical evaluation and possible treatment, such as drainage or antibiotics, to prevent further complications. If you notice pus, it's important to keep the wound clean and consult a healthcare professional.