It happens to be a duty day, and after some busy work, I can read and write. My scientific articles are often similar to personal diaries, some insights into my daily work, and I hope they will be helpful to you. In outpatient clinics, I come across all sorts of people with various states of mind and all kinds of medical problems. I found that many of them may suffer from “cancer-phobia”, and they think they have cancer because of some subtle manifestations of themselves, especially the word “tumor” in some medical reports, which causes a great burden on their mind. Today, we would like to introduce the difference between the words “tumor” and “cancer”, and hope you can understand it correctly. 1.Tumor Tumor is a medical term as well as a daily term, and it is a word that both common people and professional doctors will come up with. However, the “tumor” in the heart of the people and the “tumor” in the heart of the doctors may not be the same thing. I think most of the people will be scared to sleep when they hear the word “tumor”. In fact, “tumor” is a neutral word in medicine, which includes benign and malignant tumors in general. We often see in some medical reports that “benign tumor is considered”. Most of the benign tumors we encounter in our life are mainly local growths, which are relatively less harmful and difficult to treat, and generally do not affect life. A considerable number of benign tumors can be observed for a long time without treatment, such as: lipoma, sebaceous cyst (powder tumor), liver cyst, liver hemangioma, nodular goiter, thyroid nodule (a common diagnosis in medical reports), etc. As for how to treat and when to do so, the term “benign tumor” is a neutral term in medicine. As for how to treat them and when they need to be operated, you should consult a professional doctor, but at least you can rest assured that most of them are not “cancer” as you think in your head. Of course, malignant tumor is usually referred to as cancer. The word “cancer”, of course, is not a good word. Cancer is a kind of malignant tumor. Malignant tumors from epithelial tissues are called cancer, while those from mesenchymal tissues are generally called sarcoma. For example, thyroid cancer, there are too many such patients in outpatient clinics. Nowadays, most of the units check thyroid ultrasound, and the detection rate of thyroid cancer has increased greatly, including some young people, but there is no need to panic, most of the thyroid cancer is papillary cancer, which is a kind of “lazy cancer”. However, there is no need to panic, most of the thyroid cancer is papillary cancer, which is a kind of “lazy cancer” with a survival rate of up to “90%” in 20 years after surgery. In addition, the current surgical technology and comprehensive treatment means are developing rapidly, many cancers can be treated well, but early detection is important, the earlier the detection, the better the treatment effect. For example: colorectal cancer, according to the authoritative U.S. SEER cancer data, the 5-year survival rate of stage I colorectal cancer can reach 90.1%. The recurrence rate of patients who have lived for more than 5 years is lower, which means that more than 90% of patients can obtain long-term survival. Therefore, it is very important to pay attention to your health, early diagnosis and early treatment. Then, for those who have some symptoms such as blood in stool, change of stool habit, unformed stool and frequent stool, especially for those who have family history of tumor, it is still recommended to come to the hospital for medical treatment in time. In this era when people are more and more concerned about their health, I hope you can understand some medical terms correctly and know some medical common sense. While physical health is important, mental health is more important. It is the responsibility of our doctors to educate the public about medicine, to reduce medical stories like “cancer fear” and to maintain people’s physical and mental health.