|Symptoms||Small bump containing dead cells and purulent material|
A pustule is a small bump containing pus. It is typically yellow or white, and may have a red tinge. It is well defined, can occur on its own or in multiple numbers, and is not necessarily infected. Conditions with pustules include pustular psoriasis and pustular drug reactions.
Before pustules develop, they may have gone through a stage of being papulopustules or vesiculopustules, after having started off as papules and vesicles. They can also originate directly as pustules.
Signs and symptoms
Acute generalized exanthematous pustulosis - many small spread out pustules
Acne with pustules
Pustules due to potassium iodide
- James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "2. Cutaneous signs and diagnosis". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 13. ISBN 978-0-323-54753-6. Archived from the original on 2022-04-17. Retrieved 2022-04-16.
- Oakley, Amanda (2015). "Pustular skin conditions | DermNet NZ". dermnetnz.org. Archived from the original on 31 January 2022. Retrieved 19 April 2022.
- Morris-Jones, Rachael (2019). "1. Introduction". In Morris-Jones, Rachael (ed.). ABC of Dermatology (7th ed.). Hoboken: Wiley Blackwell. p. 4. ISBN 978-1-119-48899-6. Archived from the original on 2022-05-15. Retrieved 2022-05-15.