The prevention of thyroid nodules has always been a concern because the prevalence of thyroid nodules is increasing day by day and the dangers that thyroid nodules can bring to patients are enormous. This is why it is important to know about the prevention of thyroid nodules. The first thing you need to do to prevent thyroid nodules is to have the concept of controlling iodine intake, hyperthyroidism will directly lead to an increase in the body’s metabolic rate, so it is recommended that friends with a family history of the disease can moderately increase the amount of calories needed in the body every day; in addition, do not neglect to increase protein, it is recommended that the diet includes fresh meat, eggs, milk and soy milk; in addition, the increase in calories will make the body’s demand for vitamin B also gradually increase. In addition, the increase in calories will make the body’s demand for vitamin B also gradually increase, pay attention to supplement vitamin food; it is worth mentioning that especially to avoid stimulating food, such as spicy seafood, tea, coffee, tobacco and alcohol. The clinical research analysis shows that many thyroid nodule patients have factors that are inevitably related to emotional disorders. So the prevention of thyroid nodules must always remind themselves to maintain a good, optimistic, positive attitude, as well as open-minded attitude, people in a long-term emotional, happy condition, will reduce the possibility of thyroid nodules. The gradual rejuvenation of thyroid nodules indicates a problem that young people are carrying heavy burdens of life and social pressure, often leaving themselves in a tight and depressing state of exhaustion for a long time. Excessive fatigue will only increase the burden on the thyroid gland, thus reducing the body’s immunity. When the thyroid gland is in an unstable negative state for a long time, coupled with external infectious factors and bad mental stimuli, such as chemical stimulation or germ invasion, it is very easy to develop lesions in the thyroid gland. The environment in which we live is closely related to the development of thyroid nodules. External environmental factors such as air, soil, water and harmful chemicals in food can irritate the thyroid gland. Therefore, to prevent the occurrence of thyroid nodules, it is important to prevent environmental pollution and stay away from harmful chemicals.