Hypothyroidism is the abbreviation of hypothyroidism, and hypothyroidism in pregnant women is usually not directly caused by anger. Common causes of hypothyroidism in pregnant women include iodine 131 treatment, post-thyroid surgery, and autoimmune thyroiditis. Hypothyroidism is caused by the thyroid gland synthesizing too little thyroid hormone, or the body becoming resistant to thyroid hormone. The above causes can damage the thyroid gland so that it does not synthesize enough thyroid hormone, which causes hypothyroidism. Although anger does not usually lead to hypothyroidism, but keep a happy mood, pregnant women and the fetus are good, so pregnant women with hypothyroidism need to pay attention to their mood changes while receiving standardized treatment. It is recommended that pregnant women with hypothyroidism go to the hospital in a timely manner, under the guidance of the doctor to clarify the cause of the disease, and to carry out targeted treatment, so as to avoid delays in the condition, which may lead to adverse consequences.