Ultrasound echoes of liver cancer are usually hyperechoic or heterogeneous, and there are also blood flow signals. 1. Ultrasound of hepatocellular carcinoma usually shows hyperechoic or isoechoic foci with unclear boundary, irregular morphology and uneven echogenicity within the nodule. 2. If the tumor is relatively large, due to the infiltrative growth of cancer cells, it often manifests as unclear boundary without complete envelope. When the liver cancer mass is small, it has complete periphery and is round or oval in shape, with the further increase of the tumor, it can be accompanied by acoustic halo. 3. Ultrasound of liver cancer usually shows that the blood vessels in the tumor are rich in shape, which are trunk-like or point-like. And the blood flow around the tumor is in the form of arc around. 4. Some of the mixed may also have cancer embolism, which can be manifested as cancer embolism in hepatic venous system, portal venous system and biliary system; when portal vein cancer embolism is formed, signals of obstruction of portal vein blood flow can be seen. However, the diagnosis of hepatocellular carcinoma cannot be fully confirmed by echo alone, and it should be confirmed by other imaging features or other examinations; the size and number of hepatocellular carcinoma as well as the surrounding blood vessels can be demonstrated by enhanced CT examination. In addition to imaging, liver cancer markers should also be tested, such as alpha-fetoprotein test. If any of the above abnormalities occur, it is recommended to go to regular hospitals for comprehensive evaluation of the condition, complete hematological tests (liver function, blood routine, alpha-fetoprotein, etc.), CT and other tests to clarify the nature of the lesion and follow the doctor’s instructions to cooperate with the treatment to avoid delaying the condition.