Nov 30, 2022 · Hyperthyroidism can be caused by several medical conditions that affect the thyroid gland. The thyroid is a small, butterfly-shaped gland at the base of the neck.

Hyperthyroidism, also called overactive thyroid, happens when your thyroid makes and releases high levels of thyroid hormone. It speeds up several bodily functions, causing symptoms like rapid heart …

Apr 11, 2024 · If you have hyperthyroidism, it means your thyroid is overactive and produces too much of a hormone called thyroxine. Learn symptoms, causes, diagnosis, and treatment options.

Jul 8, 2025 · What Is Hyperthyroidism (Overactive Thyroid)? Hyperthyroidism occurs when the thyroid gland produces too much thyroid hormone, leading to symptoms like weight loss, rapid heartbeat, …

Hyperthyroidism, an overactive thyroid gland, can speed up your body’s functions. Learn about its causes, complications, symptoms, diagnosis, and treatment.

Hyperthyroidism means your thyroid gland is too active. This tiny gland is found in your neck. An overactive thyroid gland makes too much thyroid hormone. This makes your metabolism work at a …

Jul 18, 2025 · Hyperthyroidism is a medical condition due to high levels of thyroid hormone in the bloodstream. Learn about the causes, symptoms, and treatments here.

Jun 1, 2017 · Subclinical hyperthyroidism is defined by a low or undetectable serum thyroid-stimulating hormone level, with normal free thyroxine and total or free triiodothyronine levels. It can be caused by ...

Apr 21, 2021 · Hyperthyroidism means that your thyroid gland is making too much thyroid hormone. You may also hear the term thyrotoxicosis. This also means there is too much thyroid hormone in your body.

Hyperthyroidism - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the Merck Manuals - Medical Professional Version.