The sudden appearance of thyroid nodules between one year, leading to thyroid nodules have many reasons, more complex. It is recommended to consult a doctor in time and treat the cause after clarifying it under the doctor’s guidance. Generally, follow-up observation, medication and surgery can be given as treatments. 1. Follow-up observation: For small and asymptomatic thyroid nodules that appear suddenly within a year, follow-up observation is an option. Thyroid function, thyroid ultrasound and thyroid imaging can be checked regularly, and the time for the next checkup will be decided according to the results. 2. Drugs: If combined with hyperthyroidism, anti-thyroid drugs such as methimazole can be taken. 3. Surgery: Surgery can be chosen for people with higher malignancy and with compression symptoms such as dysphagia. The sudden appearance of thyroid nodules between one year, it is recommended to formalize the consultation in the Department of Nail and Breast Surgery.