甲状腺是我们体内一个重要的内分泌器官，它分泌的甲状腺激素对我们的新陈代谢、生长发育、神经系统和心血管系统等方面都有着至关重要的影响。而TSH（促甲状腺激素）、T3（三碘甲状腺原氨酸）和T4（甲状腺素）则是评估甲状腺功能的重要指标。 一、认识 ...

Medically reviewed by Kelly Wood, MD Key Takeaways High TSH levels usually mean the thyroid is underactive, which is called ...

A slightly underactive thyroid gland, the low end of normal, may help to explain some infertility of unknown cause, according to findings of a cross-sectional study published online in the Journal of ...

COPENHAGEN — The risk of new-onset atrial fibrillation (AF) varies with thyroid function and is significantly increased even in subclinical hyperthyroidism--that is, even when low thyroid-stimulating ...

Metformin, a commonly used drug for treating type 2 diabetes, is linked to an increased risk of low thyroid-stimulating hormone levels in patients with underactive thyroids, according to a study. Low ...

Dear Dr. Roach: I am a 71-year-old female in very good health. I have been taking a thyroid replacement since I was 12 years old. I currently take 125 mcg of thyroxine once daily, as well as 60 mg of ...

New research shows that it may be safe for patients taking thyroxine replacement to have low but not suppressed thyroid stimulating hormone (TSH) levels. The research shows for the first time that it ...