CT reports can generally be more than 90% accurate. However, the results may vary depending on the cause and location of the disease. However, most of them are still accurate. CT is a computerized tomography scan. It is the use of precise and straight X-ray beam, around a part of the body for cross-section scanning, with fast scanning time, clear images and other characteristics, can be used for a variety of diseases. It is of high diagnostic value for central nervous system diseases and head and neck diseases, and the accuracy of the results is also high. The disadvantage of CT is that the equipment is more expensive and the examination cost is on the high side. For certain parts of the qualitative diagnosis, still has a certain limit. And the radiation dose of CT diagnosis is larger than that of ordinary X-ray machine, so pregnant women should not undergo CT examination.