Yellow liquid formed after localized inflammation, such as an abscess, or on the surface of a wound, produced by infection with certain bacteria (known as pyogenic bacteria). It consists of dead tissue, white blood cells, and micro-organisms.
Pus is a whitish-yellow or yellow substance produced during inflammatory responses of the body that can be found in regions of pyogenic bacterial infections. An accumulation of pus in an enclosed tissue space is known as an abscess. A visible collection of pus within or beneath the epidermis, on the other hand, is known as a pustule or pimple. Pus is produced from the dead and living white blood cells which travel into the intercellular spaces around the affected cells.
Pus consists of a thin, protein-rich fluid, known as liquor puris, and dead neutrophils, which are part of the body's innate immune response. Pus, therefore, is the creamy material composed of these dead neutrophils.
When seen in a wound or dry skin, pus indicates the area is infected and should be cleaned with antiseptic.
Something that creates pus is called suppurative, pyogenic, or purulent.
Despite normally being of a whitish-yellow hue, changes in the color of pus can be observed under certain circumstances. Blue pus is found in certain infections of Pseudomonas aeruginosa as a result of the pyocyanin bacterial pigment it produces; amoebic abscesses of the liver, meanwhile, produce brownish pus. Pus might have a reddish tint to it after mixing with blood.
Pus in Milk
Most types of milk will contain a small amount of pus.
A somatic cell count is carried out before the milk leaves the farm.
Pasteurization is used to lower bacterial levels and not to reduce the somatic cell count.
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