The incidence of thyroid nodules is increasing year by year and has become a serious threat to people’s health, so how to prevent thyroid disease is especially important! 1, pay attention to diet: control the intake of iodine, iodine intake is significantly associated with the incidence of thyroid nodules. If you are not sure, you can consult your nearest doctor; avoid stimulating foods such as tea, coffee, cigarettes, alcohol; be sure to avoid iodine-rich foods such as seafood. 2, appropriate supplementation of vitamin supplements: supplement the body’s protein needs, suffering from can eat more meat, eggs, milk, etc., to supplement. 3, work and rest: maintain a healthy lifestyle and work, is also an effective way to prevent thyroid disease dietary iodine has the greatest impact on the thyroid gland, insufficient or too much iodine intake can cause thyroid lesions. Iodine deficiency is the main cause of goiter. The daily diet of people in highlands and mountainous areas often contains insufficient iodine and should be cooked with iodized salt, while people in coastal areas should control their iodine intake. 4, maintain a good state of mind: the occurrence of thyroid disease and emotional disorders are closely related. Maintaining a good state of mind and an optimistic attitude towards life can significantly reduce the occurrence of thyroid disease. Overexertion will increase the burden on the thyroid gland and reduce the body’s immunity. In the long run, the thyroid gland is in an unstable state and is susceptible to lesions under the influence of external factors, such as chemical stimulation or germ and virus invasion.