Papillary thyroid carcinoma, a kind of thyroid differentiated thyroid cancer, mainly manifests as a lump in the thyroid gland, with the following manifestations: 1. No conscious symptoms: At present, many patients have a lump in the thyroid gland discovered by ultrasound during health checkup and are found and consulted, such patients have no conscious symptoms and are mainly found by physical examination; 2. Larger tumors: Some patients with relatively large tumors, such lumps may be found from body surface will be found. Some thin patients may be detected by visual examination, while some may feel the lump in front of the neck by palpation. 3. Metastasis: If thyroid cancer metastasizes, the lymph nodes in front of the neck may be enlarged, and some may feel a lump and come to the doctor. Some people may have symptoms of distant metastasis, such as lung metastasis, liver metastasis, etc., and may come to the doctor because of this condition. A few patients have simple distant metastasis because the patient had a CT and found a mass on the lung, and only after surgery was it found to be a metastasis of thyroid cancer, and only then this condition was found to exist.