Low thyroid function, or hypothyroidism, can be temporary, but it is usually a permanent condition, according to Cedars-Sinai. Around 27 million people suffer from thyroid disease in the United States, with the majority of them experiencing low thyroid function.
Treatment for hypothyroidism generally involves lifelong administration of levothyroxine to supplement the insufficient levels being naturally produced by the body, notes Cedars-Sinai. Hypothyroidism is a progressive disease that requires ongoing monitoring throughout the patient’s lifetime by an experienced physician who is adept at treating the disease. Periodic testing of thyroid-stimulating hormone, or TSH, is required, and medication levels may need to be adjusted periodically to compensate for TSH changes.