Pre-cancerous lesions have a small risk of becoming cancerous even after removal, so regular medical and biochemical checkups at the hospital are required. Pre-cancerous lesions are early lesions that appear in localized tissues before they turn into cancer and are generally not cancerous. If pre-cancerous lesions are removed in time when they are detected, the chance of them turning into cancer can be greatly reduced. However, since cancer can be caused by a variety of factors, including hereditary factors, dietary factors, or abnormal cell differentiation, removal of precancerous lesions does not completely eliminate the risk of cancer. After the precancerous lesion is detected and removed in time, it is still recommended to go to the hospital regularly for tumor marker examination of the lesion site, and at the same time, it can be combined with immunohistochemistry and other biochemical tests to comprehensively determine whether there is any cancer attack in the organism. Regular medical checkups are also needed for early detection of cancerous lesions during postoperative recovery and normal life. After removing pre-cancerous lesions, patients are recommended to have regular physical checkups under the guidance of doctors for early detection and treatment.