In the treatment of cancer, two extremes are popular among the general public. One extreme believes that cancer cannot be cured and will die faster if it is cured, so as long as one has cancer, one should grab some good food and wait for death at home; the other extreme believes that the treatment of cancer is to get rid of cancer by all means, as long as it can be cut off, regardless of whether there is metastasis or not; chemotherapy is also to cut off all visible tumors. Chemotherapy is also to wipe out all the cancer, no matter how costly it is. This latter view exists not only among the general public, but also among certain doctors. As the saying goes, “one knife will beat the world” and “chemotherapy will not stop until life is over”. Then what is the correct viewpoint on cancer treatment? Of course, we should analyze each case on its own merits, not to listen to rumors, but to believe in science and not to go to extremes. Firstly, we should not talk about cancer and avoid treatment, but face it positively. As long as all aspects are allowed, we should respect science, look at it rationally and objectively, and receive appropriate and regular treatment under the guidance of doctors. Secondly, we cannot cut all cancers in one go. Even if doctors have the ability to cut out cancer, some cancers are not technically impossible to be cut out, but cannot be cut out. To put it bluntly, we should do the surgery that should be done and take some risks, but we should not force to do the surgery that should not be done, even if the doctor can do it, because the cancer will spread faster. Thirdly, don’t listen to the beautiful and moving propaganda of X-knife, gamma-knife and photon knife, as if there is no cancer that can’t be solved by the divine knife, which leads to abuse and over-treatment. Fourth, chemotherapy for advanced cancer is necessary, but not endless. Of course, we should pursue the maximum efficacy, but in fact, most advanced cancers cannot be completely wiped out. At this time, if chemotherapy is carried out to the end, the harm to the body will be greater than the small benefit brought by chemotherapy, and the loss is not worth the gain. To sum up, cancer treatment should be active and moderate, that is, “moderate treatment”. After all, there are only a few people who choose to avoid treatment when they have cancer; it is also rare that all cancers are treated across the board. What we need to be wary of is the third approach, because both ordinary people and medical professionals may unknowingly have the idea of “killing all cancers”, at least subconsciously. Curing cancer is like fighting a war with the enemy, of course, we have to eliminate the ghosts as much as possible, which is the ultimate goal of the war. However, the starting point is good, but whether the goal is to wipe out all the devils depends on the specific situation. If we are physically fit (i.e., physically able to tolerate chemotherapy and other anti-cancer measures) and financially fit (able to financially support), and if the treatment is effective, we should of course pursue the maximum possible efficacy, preferably to eliminate all cancers (in fact, the elimination here only refers to the invisible cancer lesions seen in CT and other imaging examinations, not the real elimination. This is just like fighting a war. If you have a good body, you can continue to fight and have good logistic protection, and you can always win the war, of course, you have to pursue the victory to eliminate all the ghosts as much as possible. But if the treatment to a certain stage, inevitably the body will get worse and worse, may be poorer and poorer tolerance to chemotherapy, or even if the body can still tolerate treatment, but the treatment effect after reaching a certain level of cancer lesion shrinkage does not last, reaching a plateau, continue treatment, simply do not see the effect, see only toxic side effects, this time to continue treatment, harmful, should consider It is time to stop and take a break. In fact, for incurable advanced cancer, the goal we pursue is to prolong life and improve quality of life as much as possible. Cancer is a chronic disease, treatment should be moderate, not excessive, and too much is too little. Take a long-term view. For cancer patients, they should have the concept of “survival with tumor”. What is “survival with tumor”? You can find that the cancer lesion still exists in your body through CT examination or even self-testing, but it is still under control and will not act up for the time being, so you may live with the tumor. Cancer cannot be cured, but it can be controlled. In fact, chronic diseases such as hypertension and diabetes cannot be cured, and to a certain extent, they can be considered as an incurable disease, but as long as they are well managed, they will not affect your survival at all. Therefore, we must have the concept of “cancer is a chronic and controllable disease” and the concept of “living with tumor”. It is the same as fighting a war, we need to talk about strategy and skills, but brute force alone will not work. If we are sure of victory, such as leukemia, certain types of lymphoma, germ cell tumors, etc., of course, we should try our best to wipe out the cancer cells in one fell swoop, and it is worth the risk. However, when we cannot eliminate all cancers, for example, for most advanced solid tumors, we should learn to advance and retreat, contract the defense line when necessary, do not go to the front line, as long as the devils do not come to attack, we should also rest and prepare for the future battle. We can borrow Chairman Mao’s war viewpoint “on the protracted war”. Anti-cancer is a protracted war, the right time to attack, the right time to retreat defense, in the stage of strategic stalemate, to learn to save strength, do not spend energy and strength, otherwise when the devils come again, you can only dry anxious, only to admit defeat. If you keep the green hills, you will not be afraid to burn wood. Curing cancer is an art.