In general, when new patients are admitted to the clinic and their current medical history is obtained, the patients and their families will be very cooperative and give a very detailed account. However, when asked about other medical histories, some patients are reluctant or uncooperative, and some even ask “Why do you ask about my family’s condition? ” Some of them said directly and recklessly, “Ask something useful, okay? It’s like a family history check”. Sometimes it’s really aggravating to encounter such a situation, obviously in understanding the patient’s condition, but be mistaken for checking the family background, like another purpose! (Think about it. Doctors are so busy, they have time to ask things that are not related to treatment?) However, this is not entirely the fault of the patient, because they do not know that this information will be linked to the disease, coupled with the less popular science about this; in addition, the leakage of personal information is now too common in society, under various banners behind the back of the phenomenon of collecting information. Although past history, etc., does not always affect treatment options, it can sometimes be a good answer to the patient’s most puzzling question (why do I have this disease?) . In oncology, this phenomenon is especially obvious, because the etiology of tumor is complex, and what is clear now can be called the tip of the iceberg. Therefore, a serious and responsible oncologist will pay extra attention to the patient’s past history, personal history, marital history, family history, etc., in addition to the tumor itself, to try to find some traces of tumor triggering.