The data relating to the present investigation has been generated from ten clinical cases of cystic endometrial hyperplasia-pyometra complex in dogs presented to the Small Animal Veterinary Gynaecology and Obstetrics Unit, Department of Clinics, Madras Veterinary College Teaching Hospital, Chennai during the period from May’ 2017 to July’ 2017. All the dogs were subjected to ultrasonographic examinations and haemato-biochemical studies for confirmatory diagnosis. | Ultrasonographic and haemato-biochemical evaluation of bitches affected with cystic endometrial hyperplasia-pyometra complex