Lesions are not necessarily cancer. A lesion is a change in body tissue relative to normal tissue, which may be caused by inflammation, lumps, growths, or malignant tumors. Not all lesions are cancerous, and they may be caused by benign diseases, which need to be determined by combining CT, MRI, and biopsy of pathologic tissues. Benign lesions commonly include hemangiomas, cysts, inflammation, etc. They do not affect the patient’s body too much and can be recovered after treatment with anti-inflammatory drugs and surgery. Malignant lesions refer to cancers, which need to be surgically removed in a timely manner after discovery, and patients who cannot be operated can be treated with radiotherapy and chemotherapy. It is recommended to consult the doctor in time if there is any discomfort, and to clarify the cause of the disease after a complete examination, and then treat it actively to avoid delaying the condition.