In this study was aimed to demonstrate posibilities using of the ultrasonography in diagnosis of physiological and pathological cases be watched in brtch and cat reproduction. Total 264 bitch and 142 cat brought to our clinics for pro-estrus, follicular cyst, postpartum (acute) metritis, pyometra, retentio secundinarium. tumor, fetal mummification, dystocia, pseudopregnancy and pregnancy examinations was used as research materials Ultrasonographic examinations were performed transabdominal^ by using a B mode real-time 5 MHz linear transducer. Alt ultrasonographic examination results was indicated, ultrasonography was as a practical, sensitive and reliable method either diagnosis or direction of treatment and monitoring of treatment resullts in small animal reproduction.