Worldwide, some 200 million people are afflicted with enlargement of the thyroid gland, and undiagnosed thyroid disorder is frequently the root of many common health complaints. Once diagnosed, however, the majority of thyroid disorders can be treated safely, easily, and without anxiety. Unfortunately, the patient's inability to grasp the seriousness and impact of thyroid malfunction often leads to unwarranted anxiety and an unwillingness to seek treatment. This new edition of Thyroid Disease: The Facts has been completely rewritten and embraces many important treatment advances. In a refreshing, accessible format, the volume provides information about all types of thyroid disorder for patients, their friends, and their families. New sections have been added to answer questions frequently asked by thyroid patients. From the basic description of normal thyroid functioning and its critical role in the human organism, to the diagnosis of specific problems associated with thyroid disorder, the book presents a comprehensive overview that clarifies many areas of patient concern. There are chapters on overactivity and underactivity of the thyroid, enlargement of the thyroid, cancer of the thyroid, thyroid problems during pregnancy, and other disorders and diseases of the thyroid. This nontechnical handbook provides a key reference for both professionals and general readers interested in understanding the complex function of this important body system.