Blood film
![](/Images/godic/202502/16/Blood_film_011338.jpg")
![Two push-type peripheral blood smears suitable for characterization of cellular blood elements. Left smear is unstained, right smear is stained with Wright-Giemsa stain.](/Images/godic/202502/16/Peripheral_blood_smear_-_stained_and_unstained1338.jpg")
![UnstainedWright-Giemsa stainedCloseups of the feathered edge of blood smears. The pale middle band of the gradient is the monolayer.](/Images/godic/202502/16/Unstained_peripheral_blood_smear_closeup1338.jpg")
![Stained smear](/Images/godic/202502/16/Stained_peripheral_blood_smear_closeup1338.jpg")
A blood film or peripheral blood smear is a thin layer of blood smeared on a glass microscope slide and then stained in such a way as to allow the various blood cells to be examined microscopically. Blood films are examined in the investigation of hematological (blood) disorders and are routinely employed to look for blood parasites, such as those of malaria and filariasis.