TSH refers to thyroid-stimulating hormone. High TSH in pregnancy may be caused by iodine deficiency, subclinical hypothyroidism during pregnancy, etc. It can be treated by dietary adjustments and medications. A woman’s need for iodine will increase during pregnancy, and if the body is deficient in iodine, high TSH may occur. At this time, diet can be adjusted to consume more iodine-rich foods such as kelp, which can alleviate the symptoms. Pregnant women with subclinical hypothyroidism in pregnancy may be caused by autoimmune thyroiditis, etc. The decrease in thyroid hormone level will trigger high TSH, and pregnant women usually have no obvious symptoms. At this time, you can follow the doctor’s instructions to take thyroid tablets and other drugs for treatment. If a pregnant woman has a high TSH, it is recommended that she consult a doctor in a timely manner, under the guidance of the doctor, improve the relevant examination, clarify the cause of the disease, and symptomatic treatment.