The most common causes of blue pus are linked to bacteria called pseudomonas aeruginosa . This infection usually appears in moderate to severe skin and soft tissue injuries, such as second to third degree burns. Sometimes it can also be responsible for urinary tract infections that result from improper catheter use. The blue color of pus results from a byproduct of the bacteria. pseudomonas aeruginosa called pyocyanin. Although this bacterium is frequently found in noninfectious colonizations on various surfaces, it can sometimes be serious when it invades open wounds in people with weakened immune systems.
Blue pus often appears in a closed abscess that can vary in size depending on the extent of the infection. These types of pus can vary in color from dark blue to a lighter blue tint depending on the amount of pyocyanin present. This substance acts as a natural antibiotic agent that tries to neutralize the pseudomonas aeruginosa when the rest of the body's immune defenses have been ineffective. A persistent wound with blue pus that does not heal usually indicates a compromised immune system and often requires additional medical treatment with oral or topical medications.
An advanced infection Pseudomonas aeruginosa to Sometimes it can produce green and blue pus, and this color sometimes indicates the presence of another antibacterial protein called myeloperoxidase. Both this protein and pyocyanin work to help white blood cells eliminate infectious bacteria through a process of ingesting invading microbes. As with other types of infections, the white blood cells eventually die and accumulate with neutralized infectious matter to form pus. Medical researchers sometimes report that laboratory test cultures of pus containing pseudomonas aeruginosa they can give off a strange odor similar to that of fermented grapes.
Most wounds with blue pus can be successfully healed by keeping the injured site clean and covered to prevent further infection. Doctors often find that topical medications containing salicylic acid are particularly effective at fighting the bacteria pseudomonas aeruginosa . Some cases of invasions of internal organs by Pseudomonas aeruginosa they need treatment with stronger antibiotics. Since this species of bacteria can survive on non-biological surfaces, it can sometimes be found on medical equipment such as ventilators and cause infections, including pneumonia, in hospitalized patients. The pneumonia induced by Pseudomonas aeruginosa to It is often characterized by the expulsion of green or blue pus from the lungs, and doctors stress that these cases are entirely preventable by proper sterilization of equipment.