Fortune teller, is there really a disease that is cancer?

Fortune-tellers say that a real disease is not cancer, because cancer is a very serious disease. Only through scientific diagnosis can we determine whether we have cancer, and there is no other way to replace it. In scientific diagnosis, doctors will judge whether they have cancer by combining the patient's signs, symptoms and examination results. If cancer is diagnosed, doctors should make corresponding treatment plans according to the specific conditions of patients. Therefore, fortune telling is not a good way to diagnose diseases, and the actual cancer needs to be determined through scientific diagnosis.