1. In fact, no one knows whether a person will develop cancer in his life, and doctors give only probabilities, such as having a family history of cancer, living in a cancer-prone area, having all kinds of chronic inflammation, and having bad living habits. …… One would expect that genetic testing would not yet be able to guide clinical interventions or stop cancer from occurring, and if we knew that a faulty gene could lead to stomach cancer, all we would have to do would be to cut out the stomach, not to change the gene. All of this is because cancer is so complex that mankind so far does not know the exact pathogenesis of each patient. Fortunately, cancer is more common in the elderly, and young people can still make cancer come later if they pay attention to the control of various inflammatory diseases and change their bad life habits. 2, in the end who treatment is effective has also been plagued by doctors. Currently, there is no objective indicator to tell doctors in advance who the treatment is effective. If you are unfortunate enough to suffer from a certain kind of cancer, the doctor will talk to you before the treatment and provide you with more than two treatments for you to choose from, which generally belongs to the reasons of uncertainty, because the doctor doesn’t know the answer, and he can only draw on the data from the previous patients and clinical research to give you a probability, so that you can decide on your own, and the subtext is similar to that of “gambling”. The subtext is similar to “gambling”, you have to accept any treatment if you are willing to gamble, and there is no turning back. A good chemotherapist is only smart enough to identify “early” who is not effective and avoid overmedication. However, the doctor will not let you choose by yourself if you have more certainty, for example, stomach cancer is divided into 4 stages, all the doctors will suggest you to have surgery in stage 1-2, unless you have your own “willfulness”, otherwise the doctors’ opinions will be more united. stage 3 will give you two choices, chemo before surgery or radiotherapy, or you can have surgery directly, which is a little bit of a gamble, the various guidelines also give you many choices. Various guidelines also have multiple options available. stage 4 patients are treated with chemotherapy, which is also less controversial. For some rare diseases, the doctor’s experience also depends on what he sees, once a thymoma to see multiple surgeons, someone said you need to be surgically removed, highly suspicious of malignancy. In the same patient, some thoracic surgeons said it was still watchable and not necessarily malignant. Why does it vary so much? I have found that it has to do with the different treatment experience of each doctor. The one who suspects malignancy and recommends surgery has had a similar thymoma that turned out to be malignant; the doctor who doesn’t recommend surgery has had a surgery that turned out to be benign, so there are two different recommendations, and they’re both right, and it’s these clinical uncertainties that create this situation, and there’s no gold standard for a lot of the treatments, especially for the rare diseases. Then the choice is given to the patient, who is at a loss …… No way, gamble! Willing to gamble! 3, what is the best treatment? In our country, due to insufficient early cancer screening, people are either afraid of cancer or don’t care about it, all kinds of late-stage cancers accounted for the majority when diagnosed, resulting in the high mortality rate of cancer in our country, and chemotherapy has become the main means of treatment. Taking digestive tract cancer as an example, there is no more powerful drug than chemotherapy for “advanced digestive tract cancer”, and the beneficiary population is between 35-40%, and the therapeutic effect of a small portion of patients who are suitable for targeted drug therapy has been increased to about 60%, and chemotherapy should be timely combined with radiotherapy and other local treatments in order to improve the quality of life and prolong the survival time as much as possible. Misconceptions of family members: 1) There are always patients’ family members asking what to do if chemotherapy is not sensitive. Whether sensitive is a reference, with what to do reference which? With nothing to do chemotherapy is sensitive; compared with traditional Chinese medicine is sensitive. If there is any medicine that is more sensitive than chemotherapy, I will definitely suggest you to go for treatment. Chinese medicine does not have strong effect in killing cancer cells in advanced digestive tract cancer, if someone says Chinese medicine can cure advanced cancer, basically it can be recognized as “liar”. (2) Chemotherapy is too hurtful: it is true that chemotherapy is a very toxic drug, but don’t forget what we give chemotherapy to patients for, non-cancer patients with chemotherapy drugs is killing, but what drugs are not toxic? Don’t get hung up on the pros and cons of this. Chemotherapy effective patients have not reached our expectations, but at present there is no higher efficacy of drugs than chemotherapy, but any better than chemotherapy efficacy of drugs doctors must recommend you to apply. Tumor treatment is most afraid of not as a drug, that is, non-toxic and ineffective, do not spend money can also be considered, if such a “drug” is expensive, I can only say that it is a fraud. Unless you are determined not to treat, chemotherapy will be even more ineffective at a more advanced stage and do more harm. 3) The old king next door is not effective: tumor treatment is different from each other, and the expectation value is also different from each other, it can be said that there are no similar patients in the world, and a patient who encounters a good therapeutic effect will be especially active in the treatment, and when he encounters a bad effect, he will give up the treatment, and this is also regarded as a characteristic of China, right? Remember, you are who you are and cannot be compared with anyone else. Suggestions: 1) Pay attention to good habits, exercise, do not “do” yourself. 2) Regular checkups, active treatment. 2) Regular checkups, active treatment of chronic inflammation, especially hepatitis prevention and control. (3) The first treatment for advanced cancer is very crucial, it is recommended that you try, but do not overdo it, and choose the best within your financial capacity. (4) Do not believe in biased prescriptions and strange tricks, and there is no “special effect” medicine for cancer treatment. 5) Not non-toxic is good medicine (there is no non-toxic medicine), the key is to be effective, and the medicine’s “inaction” is even more fatal. 6) Find a doctor you trust, think about your expectations and goals, and if you agree with the doctor’s, no matter how to treat or not to treat, “accept the bet and accept the loss”.