Whether early-stage liver cancer patients need to have their gallbladder removed depends on the location of the tumor. For liver cancers located close to the gallbladder, gallbladder removal is generally necessary. For liver cancer lesions that are farther from the gallbladder, it is usually sufficient to only remove the liver tumor, or to perform a resection of the local liver segment or sub-segment. Additionally, for early-stage liver cancer patients to undergo surgery, certain conditions must be met: the tumor must be five centimeters or smaller, there should be no cancerous thrombus in the main trunk of the portal vein, the liver cancer tumor should not involve the semi-dry or full-dry circumstances, and the liver function should be compensatory. Under these conditions, an effort should be made to perform liver tumor resection. Generally, cancers located in the left lobe of the liver require local resection, either of a liver segment or sub-segment, and sometimes resection of the liver lobe may be performed. Tumors located in the right lobe of the liver or the hepatic portal area require local tumor resection.