QUICKmedicine app

You have 3 open access pages left.
UK healthcare workers and students can get FREE subscriptions... click here.


Anisocytosis describes an abnormal variation in the size of red blood cells.

Causes include:

  • iron deficiency anaemia, especially if mixed with folate deficiency
  • thalassaemia
  • megaloblastic anaemia
  • sideroblastic anaemia
  • blood transfusion - the host and infused blood cells having different sizes