Sequential ultrasonography was performed in 22 cases of intrahepatic hematomas diagnosed by operation laboratory data and clinical manifestation. We analyzed the shape location size of hematoma and change in size and echogenicity by age of hematoma. The results were as follows: 1. The most common shape of intrahepatic hematoma was round. 2, The most common site of intrahepatic hematoma was the posterior segment of the right lobe completely absorbed form 2nd week to 4th week. 4. Echogenecities of intrahepatic hematoma in immdiate ultrasonography after injury showed mainly echogenic or mixed form and then the echogenecities were decreased and nearly or cpmpletely not seen from 2nd week to 4th week.