The most common clinical symptom of thyroid cancer in its early stages is an abnormal lump in the neck. Additionally, some patients may experience symptoms related to abnormal thyroid function. Thyroid cancer is currently a malignant tumor with a relatively high incidence rate globally and in China. There are four pathological types of thyroid cancer: papillary carcinoma, follicular carcinoma, undifferentiated carcinoma, and medullary carcinoma. Among these, papillary carcinoma is the most common and has the best prognosis. For patients presenting with an abnormal neck lump and thyroid function abnormalities, the diagnosis of thyroid cancer should be considered. Diagnosis can be confirmed through tissue obtained by biopsy or surgical excision for pathological examination. For patients with confirmed diagnoses of thyroid cancer, surgery is the preferred treatment method.