Giemsa stain

Topic Completed: 1 October 2013

Minor changes: 31 August 2020

Copyright: 2003-2020,, Inc.

PubMed Search: Giemsa stain

Nat Pernick, M.D.
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Cite this page: Pernick N. Giemsa stain. website. Accessed November 23rd, 2020.
Definition / general
  • As a hematology stain, works best with alcohol fixed smears
  • As a histology stain, detects mast cells and microorganisms, such as Giardia or Helicobacter
  • A "Romanowsky-type" stain, composed of mixtures of methylene blue, azure, and eosin compounds
  • Methylene blue is a metachromatic stain, meaning that some tissue components (mast cell granules, cartilage, mucin, amyloid) stain purple and not blue
Microscopic (histologic) images

Contributed by Andrey Bychkov, M.D., Ph.D.

H. pylori

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