There are three most common thyroid disorders: first, hyperthyroidism; second, hypothyroidism; and third, thyroid nodules and tumors. Patients with hyperthyroidism will have lethargy, fatigue, rapid heart rate, diarrhea, etc. Patients with hypothyroidism will have swelling, anemia, excessive menstruation in female patients, as well as constipation, fear of cold and other manifestations. For patients with thyroid nodules or tumors, severe patients will have throat discomfort, hoarseness, etc., but smaller thyroid nodules can be asymptomatic.