What is a low thyroid level?
Low thyroid level may point to hypothyroidism. Most often, hypothyroidism is caused by autoimmune diseases, surgical removal of the thyroid or radiation treatment, according to the American Thyroid Association.Normal RangesThyroid levels are measured in T4. The normal range is 4.6 to12 ug/dl. If your levels fall below 4.6, then you might have hypothyroidism, according to the Mayo Clinic.HypothyroidismHypothyroidism is a condition wherein the thyroid gland is underactive, according to MedLine Plus. The thyroid gland does not make the amount of thyroid hormone needed to keep the body going.SymtomsBody processes slow down when there is not enough thyroid hormone. If this happens, you may feel tired, get cold easily, become depressed or forgetful, have dry skin and experience constipation.CausesAn autoimmune disease might cause the body to attack the thyroid gland and enzymes, slowing down production of the thyroid hormone. If you’ve had a condition that required removal of part or all of
