First of all, we should clarify whether tumors can be cured or not. There are very few patients who have malignant tumors (less than one in a thousand), the tumors will miraculously heal themselves, which is also the reason why some cancer patients are cured by eating “grass roots and bark” and their family members are praying to God, knowing that the human body itself has the immune function to fight against tumors. In fact, many people may not know that through the continuous efforts and development of medicine, many malignant tumors can be treated, and more than 60% of early stage tumors can be cured, and some early stage tumors can even reach more than 90% cure rate. In contrast, middle and late stage malignant tumors are much more difficult to treat, and the prognosis is much worse, and the treatment, whether it is surgery or chemoradiotherapy, will hurt our body and cause many complications and side effects, and even some patients have progressed and even died during the treatment, which has led to people’s resistance and concern about the way of tumor treatment. However, more statistics tell us that surgery and chemo-radiotherapy have prolonged the survival time of many patients with mid- to late-stage malignant tumors, which is the mainstream understanding of medical science and cannot be denied at all, unlike the “uselessness of radiotherapy” rumored by some so-called experts on the Internet.