Mutations in the BRAF gene are a common pathogenetic principle in a variety of malignant tumors, including thyroid cancer. BRAF gene is a proto-oncogene in human body, and when it is mutated, it indicates that the patient’s own possibility of cancer is increased. BRAF gene is most often mutated in different proportions in various malignant tumors, such as melanoma, thyroid cancer, non-Hodgkin’s lymphoma, colorectal cancer, non-small-cell lung cancer, hepatocellular carcinoma, pancreatic cancer, etc. In clinical practice, the detection of BRAF gene has significance in the diagnosis of many kinds of tumors, including thyroid cancer. In clinical practice, the detection of BRAF gene is suggestive for the diagnosis of thyroid cancer and other tumors. It should be noted that thyroid cancer patients can reduce the adverse effects of the disease through “early detection, early diagnosis, early treatment”, and many patients may survive for a long time, so it is recommended that patients build up confidence in treatment. If you feel sick, you should go to the hospital in time and consult your doctor.