The presence of blood flow signals on review after liver cancer intervention indicates abundant blood flow to the liver and does not suggest liver cancer recurrence. It is because the liver has dual blood supply, which are portal vein system and hepatic artery system. The liver itself collects more blood flow, so the blood flow signal itself exists in the liver, and there is no need to be overly nervous. To determine whether it is a recurrence of liver cancer, first of all, it is necessary to clarify whether there are hypoechoic nodules or not. If there are already hypoechoic nodules with abundant blood flow signals, only then is it considered that the tumor is recurring, and it may also be liver cysts or hepatic hemangiomas and so on. Moreover, liver cancer is mostly a solid occupying lesion, and it will also have some other special manifestations, such as liver area bulge, abdominal mass, jaundice, spider nevus and so on. If there are blood flow signals in rechecking after liver cancer intervention, it is recommended to consult the doctor in time and further cooperate with the doctor for more detailed examination, so as to avoid delaying the condition.