Pustule or Collection of Pus
Skin | Dermatology | Pustule or Collection of Pus (Symptom)
Pus is a thick liquid, yellowish or greenish, secreted by infected tissue, and composed of serum, leukocytes, dead cells and other substances.
Is referred to discharge pus production and it usually occurs as part of an infectious inflammation thus, its presence is a clinical sign of infection. There are also diseases that occur without the presence of pus and infections are occurring with necrosis of tissue or accumulation of dead tissue, such as psoriasis or pustular melanosis neonatal transient.
The collection of pus (dead neutrophils) accumulates in a cavity (abscess) formed by the tissue in which the pus resides due to an infectious process (usually caused by bacteria or parasites) or other foreign materials (e. g. splinters, bullet wounds, or injecting needles).