1. The test report is not always sufficient to determine the severity of the condition. For example, is a breast nodule or thyroid nodule benign? Or is it malignant? It cannot be determined directly from ultrasound or mammogram alone. 2. Is a nodule on the breast or thyroid gland (including other organs) benign? Or is it malignant? The most accurate diagnosis comes from pathology, which is the gold standard for diagnosing whether a nodule on the breast or thyroid is benign or malignant (the most accurate diagnosis). Note: The pathological diagnosis requires that a portion of the tissue be removed from the nodule. This is medically known as “biopsy” and also includes “smear cytology”. 3. Ultrasound (including color ultrasound), mammography, CT, X-ray, MRI, and even PET-CT can help determine whether nodules (or lumps) on the breast, thyroid, and other organs are benign or malignant. But, this often means that the judgment can only be made when these nodules or lumps are more typical. Moreover, this kind of judgment is called “imaging diagnosis” in medical science, and imaging diagnosis is not the final diagnosis of breast and thyroid nodules or lumps in medical science. The accuracy of imaging diagnosis is not only directly related to the equipment, but also related to the level of the doctor who does the ultrasound examination and the radiologist who reads the X-rays and CT films. For example, the same CT film may not have the same diagnostic imaging report. For example, if the same person has a breast ultrasound at different hospitals at approximately the same time (e.g., within a week), one hospital may say there are nodules in the breast while another says there are no visible breast nodules. When you encounter such a tangled problem, you do not need to be apprehensive, just find a specialist to help you read and analyze, or a doctor from different fields to consult together, you will be able to solve it. 5. Medicine is a science, and like natural science, there are many mysteries that are not yet known to mankind. Therefore, medicine itself there are many, many places that have not been clarified or are now impossible to clarify. And this is exactly what the general public does not understand about the limitations of medical science. Big guys think that if I go to the hospital and have an ultrasound, a film, or even a more expensive CT test or MRI, the doctor will definitely be able to figure out everything about my condition. If you think so, you are only partially right, and most of the time, you will only come away disappointed. There are times when it is true that an ultrasound, a film, a CT, etc., will get you to the cause of your condition. For example, is the lump in the breast a fluid (like a cyst) or a solid lump? Ultrasound will be able to basically answer with certainty. However, when the lump in the breast is a solid one, it is more difficult to determine by ultrasound whether the solid lump is benign or cancerous. It is more difficult to determine whether the lump is benign or cancerous. At this time, you need to see a breast surgeon, who will do a physical examination for you and read and analyze the text reports of your ultrasound, mammogram or MRI examinations. If it is difficult to judge and there is a high suspicion of malignancy, the doctor will usually recommend a puncture biopsy to obtain a pathological diagnosis; or directly recommend surgery, etc. 6. Thinking the other way around is also true – very often, one cannot rely on the examination report to determine the benignity or malignancy of the mass. If the condition can be judged from the examination report, for example, to determine whether a nodule or a small lump on the breast is benign or malignant? Then there would be no need for hospitals to set up various clinical departments, and patients would not have to go to various doctors to see them. Instead, they should just go to the doctor who did the ultrasound or CT test and present a report. As we all know, this is not the case. So, in case you have a test report that makes your judgment difficult, or if you have a lot of questions, read the above and you can stop being anxious. Your advice is to take your complete test report and pictures to a doctor you can trust. The specialist will help you to solve this problem.