Your husband might have what we say subclinical hypothyroidism. A condition that your thyroid doesnt make enough thyroxine and your pituitary gland raises TSH levels above normal in an attempt to make your thyroid gland work more efficiently. Has he gained weight or struggling to lose? Is he often complaining about fatigue? Consult a good endocrinologist. He may order some additional blood tests and put him on levothyroxine. Dont leave it like this.
Thanks for response. He is not losing weight or gaining either. No sign of fatigue. Is there any general medication (some tablets) that can help for this TSH level?
There is no over the counter medication that I am aware of. Hypothyroidism is most commonly treated with a prescribed thyroid hormone replacement. Levothyroxine, mentioned above (a common brand name is Synthroid) is probably the most commonly prescribed of this type of medication. As was alluded to, an endocrinologist is best equipped to assess your husband's condition, but sometimes even internists or family practitioners are willing to prescribe thyroid hormone. He may need frequent adjustments in the dosage before his level becomes stabilized.
Treating with TSH levels under 10ml/L is controversial at the moment. You ll find endocrinologists that would rather avoid any levothyroxine treatment at the moment and others that would put him on treatment ( gradually increasing the dose at correctly cwatt1 mentioned). If there are not symptoms of hypothyroidism and his heart health is in shape, i cannot see any reason of going on levothyroxine. It is recommended that he should repeat the test after three months to recheck TSH levels and see if it settled down. If it hasnt or it has increased you have to visit an endocrinologist. Selenium supplements( about 200 micrograms per day ) can help bring TSH down. Make sure he receives iodine from iodised salt, and fish once or twice a week.