In China, many family members of cancer patients hide their true medical condition from patients, believing that it is better to maintain the patient’s quality of life and cancer treatment by hiding the condition from the patient. Some media reports suggest that about 70% of Chinese cancer patients have their disease concealed from them by their families. In fact, it is neither legal nor the subjective desire of most patients for their families to conceal their conditions from cancer patients, which may add to the psychological burden of patients and even bring negative impact to their treatment. In China, many malignant tumor patients are not aware of their condition during treatment and are usually coaxed to be treated in hospitals. However, from the subjective will of cancer patients themselves, most of them want to learn the truth about their condition as soon as possible. The situation in China is similar: according to a survey conducted by West China Medical College of Sichuan University among 1023 Chinese cancer patients and their families, 90.8% of the surveyed Chinese cancer patients believe that early-stage cancer patients should be informed of the truth about their illnesses, and 60.5% of the surveyed cancer patients believe that late-stage cancer patients should be informed of the truth about their illnesses, and most of the patients and their families choose medical workers to fulfill the obligation to inform them. The majority of patients and family members choose to let medical workers fulfill their obligation to inform them. In fact, in the long run, hiding the disease from patients’ relatives does not help to maintain the quality of life of patients, but may be exposed due to the aggravation of the disease. Concealing the disease from cancer patients does not have a positive effect on the treatment itself, but may cause suspicion, anxiety and depression, which may affect the quality of life and mental state of the patients. According to the survey, 58.0% of cancer patients are very dissatisfied with the medical staff for concealing their illnesses, and 45.1% of cancer patients are angry because their family members know the real illnesses but they do not know. However, it is again a very real problem for family members to conceal their illness from cancer patients, and it may depend on the patient’s condition to decide. For patients who cannot accept death and are very afraid of cancer, concealing the disease so that they can feel that there is still hope for life and thus actively cooperate with treatment may again have a positive effect. However, if the patient is able to accept death and can be treated positively, telling him the truth about cancer will help him understand cancer, understand his physical state and adjust his mind consciously so that he can learn to love himself and care for his body better, which will be very helpful for treatment. At the same time, even for patients who are difficult to treat effectively, it can help them deal with their internal regrets and ease their worries about leaving, while the close companionship of relatives will make them feel less painful about leaving, which is the meaning of end-of-life comfort. How to tell the patient bad news? It varies from person to person and the principle of gradual DD pressure becomes motivation. From a psychological point of view, weak signal stimuli that are brief and repeated are more acceptable than fast stimuli. We have experienced in our clinical work that there is a difference in the ability to tolerate bad news. Many psychologically healthy oncology patients are far more tolerant of bad news than one would expect, and gradually delivering bad news to patients may be more beneficial to clinical treatment. Patients: eliminate fear, face reality DD mental relief In people’s imagination, when hearing the bad news of cancer, most patients will faint, or cry like a fountain, and feel painful, or lose all their thoughts, and seek for a short life. Careful analysis is first of all the misconceptions and insufficient popularization of tumor knowledge. They may not know that a large part of cancer is curable, especially early stage tumors, but the word “cancer” is too harsh and straightforward. Patients would rather say their lesions are “not so good” than equate themselves with cancer. This requires that the patient be told the bad news gradually. In fact, quite a few patients are half-awake about their condition, and they are “too confused” at that time! Once the fear is removed, they can face it calmly and rationally in the face of all kinds of bad news. I believe that more patients will not be afraid of cancer and will no longer be afraid of talking about it.