How many thyroid diseases are there?
Statistics show that about 200 million people in the world have some form of thyroid disease. Needless to say, there are so many types of thyroid diseases. Anyway, keep in mind that the main conditions present in most thyroid illnesses are hypothyroidism (thyroid under activity) and hyperthyroidism (thyroid over activity). Specialists consider that thyroid nodules are common and treatable. The main idea is that they should always be investigated since a small proportion of them are cancerous. Not too many people know that hyperthyroid patients often feel unusually nervous or irritable while hypothyroid patients can feel unusual fatigue or depression.