High cholesterol may be related to the thyroid gland in some way, such as hypothyroidism, which causes high cholesterol due to decreased secretion of thyroid hormones, which affects the metabolism of lipids and appears to decrease cholesterol utilization. The causes of dyslipidemia are primary and secondary. Primary factors such as diet, excessive mental stress, heredity, etc.; secondary factors are lipid abnormalities secondary to certain diseases, such as hypothyroidism. So high cholesterol and thyroid may have some relationship. Thyroid hormone can promote the synthesis and degradation of fat, hypothyroidism patients due to the reduced secretion of thyroid hormone, may cause fat metabolism abnormalities, thus causing dyslipidemia, such as cholesterol increase. If you have high cholesterol, you should eat a light diet, drink plenty of water, exercise properly, control your weight, and take oral statin lipid-lowering drugs under the guidance of a doctor, and at the same time, find out the cause of the dyslipidemia, and then treat it according to the cause of the disease.