Patients with thyroid cancer may experience symptoms such as throat itching and coughing. The causes can be considered from the following aspects: Firstly, thyroid cancer tends to metastasize to the lungs through the bloodstream. Once lung metastasis occurs, respiratory symptoms will appear, including throat itching and coughing. Additionally, these symptoms may also arise from a decrease in immunity following chemotherapy, radiotherapy, and surgical treatments for thyroid cancer, leading to concurrent lung infections. Thirdly, some patients with thyroid cancer may have invasion of nearby organs, such as the esophagus or airways, which can also lead to symptoms of throat itching and coughing. In terms of treatment, apart from symptomatic drug therapy, it is paramount to administer systemic anti-tumor treatments. Effective control of thyroid cancer is essential to alleviate these clinical symptoms.