Many tumors cannot be eliminated by human beings at present, and the methods to deal with different malignant tumors are not enough just by elimination, but also by transformation, including the transformation of the residual cancer, so that it can be converted and survive with the tumor, and also the transformation of the body, so that patients can improve their own ability to fight cancer. For most cancer patients, “tumor elimination” is still the main and most basic way to treat cancer, especially for small tumors in the early stage. The war against cancer in the past century has made great progress in “eliminating tumors”, but there is still a long way to go to overcome cancer. Although early diagnosis and treatment have greatly improved the efficacy, it is very difficult to further improve it. Clinical practice proves that to deal with tumors, it is not enough to “eliminate” but also to “transform”. Patients must learn how to “co-exist and live peacefully with tumor”. For patients with advanced tumors, it is better to control the tumor rather than eliminate it, because sometimes “eliminating” the tumor will promote the resistance and recurrence of the tumor. For example, in the early stage of his cancer clinical practice, he did put all his hopes on tumor eradication, such as expanding the scope of surgery, using increased doses of antipyretic herbs, etc., but the results were counterproductive and patients died faster. Some patients with inoperable advanced liver cancer, after using the strongest chemotherapy drugs, although the white blood cells dropped significantly and the bulging abdominal tumor was gone after 10 days, the good times did not last long and the patient still died quickly, and the autopsy found that the patient’s intrahepatic tumor was at least three times of the original one. It was later scientifically proven that cancer cells would become resistant after chemotherapy. There are also some advanced patients with unresectable liver cancer, and after using whole liver radiation therapy, although the tumor also shrunk significantly, jaundice and ascites soon appeared, and the patient finally died of liver failure. When it comes to the current over-testing, over-treatment and over-medication, dealing with tumors, sometimes no treatment is the best treatment. For patients with advanced cancer, overly aggressive anti-cancer treatment, in addition to allopathic treatment, can instead increase the patient’s suffering. Before there is really an effective treatment, sometimes taking some Chinese medicine according to the diagnosis and treatment can reduce the pain. No treatment is not equal to negative treatment. Doctors should encourage patients to eat as much as possible, do moderate activities and fight against cancer by improving the body condition as much as possible. Usually people think that they should take more supplements when they are sick, and as a result, they eat a lot of things that they don’t normally eat or shouldn’t eat. The more advanced the cancer is, the more important it is to clear the check and eat lightly, as usual, or even more lightly. Academician Tang concluded that physical activities such as swimming and grocery shopping are the most characteristic “anti-cancer prescriptions”; it is best not to miss one annual physical examination.