Hypothyroidism is what happens when your thyroid gland is not producing enough thyroid hormone and your body feels sluggish.
The symptoms of each diagnosis are the same. An underactive thyroid is more common in women, but the reasons are unknown.
Subclinical Hyperthyroidism: is when your labs are mildly abnormal but you do not experience any symptoms.Depending on your age, other medical problems, and labs values, this may or may not need treatment.
The most common cause of hypothyroidism in the U.S. is Hashimoto’s Thyroiditis. This occurs when your body is making thyroid antibodies to attack your thyroid gland. It is followed by iatrogenic (after thyroid removal or radioactive iodine) or other inflammatory causes.