Thyroid Disease: What You Should Know Thyroid disease is one of the most common endocrine disorders, affecting millions of people worldwide. Despite its prevalence, it often goes undiagnosed due to the subtlety of its symptoms. Early diagnosis and treatment are key to preventing complications and managing the condition effectively. AFC Urgent Care Danbury Main St. is here to help you understand thyroid disease—its causes, symptoms, and treatments—so you can take the proper steps ...