If your mysterious weight loss, sudden intolerance to heat, and noticeably irregular period has you scouring the internet for the reasons why, you’ve probably wondered if your symptoms are the result ...

Medically reviewed by Kelly Wood, MD Key Takeaways Hyperthyroidism is when the thyroid makes too much hormone, affecting ...

An overactive thyroid, or hyperthyroidism, has symptoms like fatigue, anxiety, and weight loss. Some things that can cause hyperthyroidism include Grave's disease and thyroiditis. If you don't treat ...

Hyperthyroidism means the thyroid gland is overactive and produces more hormones than your body needs. Brain fog and other cognitive changes are potential complications of hyperthyroidism. Brain fog ...

Some research suggests there may be a link between hyperthyroidism and tachycardia. When a person has hyperthyroidism, the body produces too much thyroid hormone, which can affect the heart. People ...

Your thyroid gland (a small butterfly-shaped organ in the lower front of your neck) makes hormones that help your body use energy, stay warm, and keep your organs working the way they should.

Evidence does not show a link between hyperthyroidism, or overactive thyroid, and blood in the urine (hematuria). Experiencing blood in your urine may result from issues with your bladder, kidneys, or ...

Hyperthyroidism in infants is rare but potentially serious. It is often a temporary condition that has associations with maternal Graves’ disease. Graves’ disease is an autoimmune condition that ...