Ruchi Mathur, MD, FRCP(C)
Ruchi Mathur, MD, FRCP(C) is an Attending Physician with the Division of Endocrinology, Diabetes and Metabolism and Associate Director of Clinical Research, Recruitment and Phenotyping with the Center for Androgen Related Disorders, Department of Obstetrics and Gynecology at Cedars-Sinai Medical Center.
William C. Shiel Jr., MD, FACP, FACR
Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
- Hyperthyroidism facts
- What is hyperthyroidism?
- What are thyroid hormones?
- Thyroid hormone regulation--the chain of command
- What causes hyperthyroidism?
- What are the symptoms of hyperthyroidism?
- How is hyperthyroidism diagnosed?
- How is hyperthyroidism treated?
- What's best for you?
- Pictures of Hyperthyroidism - Slideshow
- Pictures of Thyroid Medical Anatomy
- Pictures of Thyroid Conditions - Slideshow
- Thyroid FAQs
- Patient Comments: Hyperthyroidism - Symptoms
- Patient Comments: Hyperthyroidism - Treatments
- Find a local Endocrinologist in your town
- Hyperthyroidism is a condition in which there is an excessive amount of thyroid hormones.
- Thyroid hormones regulate the metabolism of the cells.
- Normally, the rate of thyroid hormone production is controlled by the brain at the pituitary gland.
- There are many possible causes of hyperthyroidism.
- Common symptoms of hyperthyroidism include restlessness, tremors, weight loss despite an increased appetite, sweating, rapid heart rate, intolerance to heat, and frequent bowel movements.
- Treatments for hyperthyroidism include medications, ablation, and surgery.
What is hyperthyroidism?
Hyperthyroidism is a condition in which an overactive thyroid gland is producing an excessive amount of thyroid hormones that circulate in the blood. ("Hyper" means "over" in Greek). Thyrotoxicosis is a toxic condition that is caused by an excess of thyroid hormones from any cause. Thyrotoxicosis can be caused by an excessive intake of thyroid hormone or by overproduction of thyroid hormones by the thyroid gland. Because both physicians and patients often use these words interchangeably, we will take some liberty by using the term "hyperthyroidism" throughout this article.
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