Can you have low TSH with Hashimoto's (antibodies are present)?

Yes, transiently. Hashimoto's thyroiditis can go through a phase of thyroid hyperactivity early in the course of disease and that would be associated with low TSH. Sooner or later enough thyroid is destroyed that thyroid functions declines and TSH rises.

Related Questions

6 months postpartum low TSH and thyroid antibodies found. Tsh went back to normal 2 months later. Hashimotos? Or just postpartum thyroiditis?

Probably. Postpartum, but doesn't really matter if lab returned to normal. It will obviously need to be monitored on an on-going basis as it could change in the future, particularly during a future pregnancy. Read more...

I have hashimoto's thyroiditis w/ tpo antibodies, 3 to 4 nodules. Tsh fluctuates between 7.527 0.014 w/ 30lb. Wt. Gains when high. From 154lb. 218lb 3y?

What is question? I don't know what your question is, but with thyroiditis your immune system thinks your thyroid is foreign, like a virus, and tries to kill it. It is an inherently unstable situation, for which i recommend you receive thyroid hormone pills to make sure your TSH is closer to 1.00 at all times. It is a judgment call, but with severe fluctuations like yours i think 3 month followups are in order. Read more...

Having TPO antibody 17 and Thyroglobulin <20 confirms Hashimoto's or not? I had TSH 4.67 which reduced to 2.61 in 18 days after taking Levothyroxine.

Depends on TPO assay. Hi. It depends on the normal range for TPO antibodies in that assay. Your thyroglobulin antibodies are undetectable, and that's normal. So without know the normal range, I can't say. If your TSH fell from 4.67 to 2.61 in 18 days, it will be lower still by the time that l-thyroxine dose reaches steady state in your body after 5-7 weeks of therapy. Read more...

What does it mean if my TSH is higher than normal and so are my TPO antibodies but my T4 levels are normal? I was told I have hashimoto's.

Consistent with. Hashimoto. Please do follow up with your doctor as you are heading toward thyroid deficiency and if your doctor suggests going on thyroid replacement, it would be good to comply with the doctor's advice. Read more...

I'd love some help understanding some bloodwork results. (TPO) Ab (High - 304 mL) TG Antibody (High - 18.7 mL) T4 free direct 1.11 normal TSH 2.44 normal Do these results indicate Hashimoto's? It will be a few weeks before I see my doctor.

Hashimotos. Yes, the positive TPO antibodies suggest Hashimoto's thyroiditis. But your FT4 and TSH are normal, so your thyroid is still working fine. Someday, you may become hypothyroid, but that day could be in 6 months or 20 yr. This often runs in families. Why were these drawn in the first place? A goiter is common as the thyroid enlarges to compensate. Read more...

My TSH levels are 4.67.I am on 25mcg levothyroxin. Doc said its hashimoto's.Should I ask to check my thyroid antibodies too? Or the treatment is same?

Same treatment. If you are/were hypothyroid and are doing well on replacement medication, knowing the status of your auto-antibodies is not going to change the course of treatment. Read more...

Hashimoto's. Tsh: sep 0, 16* (0, 3-4) now 0, 16*. Ft4 sep 21, 4 (10-26) now 14, 4. T3 sep 2, 47 (1, 2-2, 8). Ft3 now 4, 9 (3, 3-6, 1).Sep 150mcg euthyrox, now 100mcg euthyrox & 10mcg liothyronine. Why is my TSH low?

Opposite. Tsh originates from the pituitary gland. It stimulates the thyroid to produce t4. Unbound or free T4 is convered by your body to active form t3 (liothyronine). Too much T4 either produced from the thyroid or from thyroid med causes a negative feedback effect. It tells your pituitary gland not to produce tsh. So it goes down. This is why your dosage was probably decreased because your TSH was low. Read more...
Likely too much meds. It appears you've been over medicated and that your thyroid is at a high level of function for you. Even if the thyroid levels are in normal range, they are still very robust and just came down from much higher levels. It would take time for an adjustment to affect all levels and so these can be why TSH is low. If it persists, another visit to your doctor may be needed to lower meds. Good luck. Read more...