MSD Manual

Please confirm that you are a health care professional

honeypot link
Vaginal cytology of proestrus, dog
vag-cytology-typical-proestrus-14-davidson-master
Vaginal cytology of proestrus, dog

    During this stage there is a progression from parabasal cells to small and large intermediate cells, superficial-intermediate cells, and finally superficial epithelial cells.

Courtesy of Dr. Autumn Davidson.