Pus
| Pus | |
|---|---|
Infectious disease |
Pus is an
Description
Pus consists of a thin,
Although pus is normally of a whitish-yellow hue, changes in the color can be observed under certain circumstances. Pus is sometimes green because of the presence of
In almost all cases when there is a collection of pus in the body, a clinician will try to create an opening to drain it. This principle has been distilled into the famous
Some disease processes caused by pyogenic infections are impetigo,[9] osteomyelitis, septic arthritis and necrotizing fasciitis.
Pyogenic bacteria
Many species of bacteria may be involved in the production of pus. The most commonly found include:[10]
- Staphylococcus aureus
- Staphylococcus epidermidis
- Streptococcus pyogenes
- Escherichia coli (Bacillus coli communis)
- Streptococcus pneumoniae (Fraenkel's pneumococcus)
- Klebsiella pneumoniae (Friedländer's bacillus)
- Salmonella typhi(Bacillus typhosus)
- Pseudomonas aeruginosa
- Neisseria gonorrhoeae
- Actinomyces
- Burkholderia mallei (Glanders bacillus)
- Mycobacterium tuberculosis (tubercle bacillus)
Staphylococcus aureus bacteria is the most common cause of boils.
Historical terminology
In the pre-asepsis era, surgeon Frederick Treves (1853–1923) wrote, "Practically all major wounds suppurated. Pus was the most common subject of converse [among surgeons], because it was the most prominent feature in the surgeon's work. It was classified according to degrees of vileness." [11]: 347 But pus of the right kind was considered desirable.[12]: 80 "If a patient was lucky ... a thick cream-colored odorless fluid would appear within five or six days"; such "laudable" pus was considered "a sure sign that the wound would heal" [11]: 344 because it meant "Nature has put up a bold fight against the invader".[13] "On the other hand, if the pus gradually became watery, blood tinged and foul smelling, it was designated 'sanious' [14] [or 'ill-conditioned' ] [15] and the wound condition was considered unfavorable".[14] It later came to be understood that "laudable" pus generally implied an invasion of relatively benign staphylococcus, while "ill-conditioned" pus usually meant the more dangerous streptococcus was present.[11]: 345 [14]: 247
See also
References
- ^ "Pus". dictionary.reference.com. Retrieved 2008-08-18.
- ^ "Pus – What Is Pus?". medicalnewstoday.com. Retrieved 2016-08-19.
- ^ British Medical Journal. British Medical Association. 1917. pp. 751–754.
- ^ Society, Louisiana State Medical (1846). Journal. p. 251.
- ISBN 978-0-7020-4089-4.
- ^ a b Madigan, Michael T. and Martin, John M. Brock Biology of Microorganisms 11th ed. Pearson Prentice Hall. US. 2006: 734
- ^ "pyogenic" at Dorland's Medical Dictionary
- ISBN 978-0721692715.
- ISBN 978-3-540-30245-2
- OCLC 335390813.
- ^ ISBN 978-0-307-80789-2.
- ^ Van Hoosen, Bertha (Autumn 1947). "A Woman's Medical Training in the Eighties". Quarterly Review of the Michigan Alumnus: A Journal of University Perspectives. University of Michigan Libraries: 77–81. UOM:39015006945235.
- ^ Scott, William (1922). An indexed system of veterinary treatment. Chicago: Eger. p. 603.
- ^ a b c Schneider, Albert (1920). Pharmaceutical bacteriology (2nd ed.). P. Blakiston. p. 247.
- ^ Williams, Charles J. B. (1848). Principles of Medicine: Comprising General Pathology and Therapeutics, and a Brief General View of Etiology, Nosology, Semeiology, Diagnosis, and Prognosis: With Additions and Notes by Meredith Clymer. Churchill. p. 306.
External links
Media related to Pus at Wikimedia Commons
