A 63-year-old female asked:
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what can cause high tsh level after several years of synthroid (thyroxine) for post ablative (graves) hypothroidism?

1 doctor answer
Dr. Jeffrey Ng
30 years experience Family Medicine
Usually low Thyroid : Post ablative hypothyroidism is a condition where the thyroid gland is not functioning well and thus the patient needs more thyroid hormone. A "high tsh" actually mean there is not enough thyroid in the blood, thus an increase in dosage of the synthroid (thyroxine) is needed. Go see your family doctor and he/she will make adjustments and recheck the TSH level. This is very sensitive to thyroid in the body.
Answered on Mar 24, 2019

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