Proerythroblasts can be identified using various histological staining techniques. One common method is the use of Wright-Giemsa stain, which highlights the basophilic cytoplasm and the large, round nucleus with a fine chromatin pattern. Immunohistochemistry can also be employed to detect specific markers such as CD71 (transferrin receptor) and glycophorin A, which are expressed on the surface of proerythroblasts.
