Hyperthyroidism (or thyrotoxicosis) occurs when the thyroid gland is overactive and produces too much thyroid hormone.
If your thyroid becomes overactive (hyperthyroidism) or underactive (hypothyroidism), you may experience a range of health problems — learn more here.
Thyroid medicines treat thyroid disorders, including hypothyroidism and hyperthyroidism. Read about how they work and their potential side effects.
Your thyroid gland sits in the front of your neck and helps control your metabolism. Read about the different thyroid hormones and thyroid problems.
Thyroid function tests
A thyroid function blood test is used to check your thyroid stimulating hormone (TSH), thyroxine (T4), and triiodothyronine (T3) blood levels.
In this autoimmune condition, the thyroid gland in the neck produces too much thyroid hormone that can cause tremor, anxiety, a racing heart, goitre and bulging eyes.
Hypothyroidism (underactive thyroid) is when thyroid gland doesn't make enough thyroid hormone. See symptoms, diagnosis and treatment options here.
A thyroidectomy is the removal of part or all of your thyroid gland. It’s used to treat an enlarged or overactive thyroid gland or thyroid cancer.
Heart murmurs are sounds that can be heard when listening to the heart. Some heart murmurs are a sign of a heart condition, but others are not. Here's what you need to know.
Metabolism refers to all the chemical processes your body uses to produce energy. Find out more about metabolism, what affects it and whether you can boost your metabolism.