This is the best of times, this is the worst of times. Today, we are going to talk about the phenomenon of double cancer which cannot be ignored, for the time being, entitled “Double Cancer Story”. Compared with the early years when people were afraid of cancer, today’s people who fall under the skirt of “Doctor Dounian” have become much calmer. In the era of internet pinging, anyone can easily get information about hospitals and doctors. The more information is available, the more difficult it is to make decisions, because it is difficult to distinguish between truth and falsehood. The right information is the strong guarantee for the right decision. However, medical information is still not equal after all, and the correct interpretation and in-depth analysis of medical information requires a rather high threshold. Partial truth and overall inaccuracy is the usual trick of false medical information, which is difficult for the general public to unravel and makes me laugh every time. Many doctors (such as Sina @DongDaFu) have also organized their own activities to take pictures of false medical advertisements, but lacking the promotion of more heavyweight vloggers, they have not formed a climate. The medical science can’t be done quickly, and the construction of clinical experience requires a long experience of “healing”, because people are independent individuals, and individual people constitute a huge group. 8-10 years of medical education is mainly in the completion of the dissemination of universal laws, and to some extent, “Doctor Dounian The “doctor” can also be somewhat useful in this regard. But, specifically to each person, it will show the “dragon born nine sons” of the special nature. This is precisely where medicine is most difficult, and where doctors are most amazing. A doctor has to spend a lifetime of growth to complete the journey from the particular to the universal. Live and learn. The so-called double cancer is a special type of cancer, which is simply understood as a person suffering from two types of cancer. What is more important than double cancer is multiple cancer. The reason for this is still unclear, but medical scientists generally believe that there is something wrong with the genes. Theoretically, double cancer can occur in any system, and if we randomize the combination of organs in the human body, it is really enough to calculate a pot of math ability like me. Based on my specialty, I am more concerned about double cancers in the digestive system, especially in the gastrointestinal tract. There have been many reports of double cancers in the gastrointestinal tract, either in the stomach, intestine, or both. All kinds of cases have been encountered, and it is really tricky in making treatment decisions. Another situation is the combination of gastric/intestinal cancer with mesenchymal tumor, which has also been discussed in many articles. This kind of double tumor is different from the common primary tumor + metastasis pattern and requires a holistic view and global perspective in treatment. Therefore, these patients are more suitable to be treated in established multidisciplinary collaborative medical centers, but still with a surgical-oriented approach. The presence of double and multiple cancers does pose a challenge to physicians not to miss the diagnosis due to one-sidedness.