A nine years old female dachshund dog, body weight 6 kg was presented with suddenly grow up of left inguinal mammary lobe and vaginal discharge as several serosanguineous with concurently urination. Clinical, laboratory, ultrasonographic and radiographic examinations were carried out In the course of mammary tumour and inguinal hysterocele operation, cyctic ovarian formation and cystic endometrial hyperplasia-pyometra complex were concurently observed. His-topathologycally, type of mammary tumour, ovarian cystic formation were considered as lobuler adenocarcinoma, papillary cystadenocarcinoma, respectively. Because of to be observed concurrently mammary tumour, inguinal hysterocele, cystic endometrial hyperplasia-pyometra complex and ovarian papillary cystadenocarcinoma in the a bitch, presentation of this case has been required.