Liver ablation can be performed multiple times if size, location, and liver function permit. There is no absolute limit to the number of times of liver ablation. If the size, location and liver function allow, liver ablation can be performed several times. 1. Patients with small number of intrahepatic tumors or small lesions: single ablation treatment requires that the liver tumor is a single one with a diameter of not more than 5 cm, or the number is less than 3 and each tumor is not more than 3 cm, at this time, single ablation can achieve the elimination effect. 2. Patients with recurrence after ablation: liver tumors may recur during the follow-up process, and if the size and location are equally suitable and liver function permits, ablation can also be performed again. The number of liver ablation varies from person to person, and patients need to have regular checkups, and if there is any change in their conditions, they should consult the doctor in time and be treated by professional doctors.