Benign lesions are more likely to be benign, that is, the tumor examined is considered to be benign and less likely to be malignant. Benign lesions in the clinical mainly refers to cysts, hemangiomas, fibromas, lipomas, misshapen tumors and other diseases. Benign tumors grow slowly, and imaging tests mainly show clear tumor boundaries, regular internal echoes, no obvious calcification, and no obvious blood supply. If the tumor grows large or has compression symptoms on the surrounding organs, surgery needs to be considered. On the other hand, the nature of malignant tumors is different from that of benign tumors, with faster growth rate and easy metastasis, and the imaging test mostly reveals unclear boundaries, irregular echoes, and abundant blood flow. It is sometimes difficult to distinguish benign tumors from malignant tumors clinically, and it is often necessary to combine the patient’s clinical symptoms, enhanced CT, tumor markers and other test results for auxiliary diagnosis, and the final diagnosis is based on pathological examination. If you suspect the existence of tumor, we suggest you to consult the oncologists of regular hospitals.