Thyroid problem implies the inefficient or anomalous production of thyroid hormone by the thyroid gland. This hormone regulates numerous bodily activities ranging from the maintenance of blood sugar levels to the rate at which the heart beats. When the thyroid produces either too much or too little of this hormone, a set of symptoms colloquially referred to as “thyroid problems” are observed. Depending upon the nature of production malfunction, one may suffer from either hypothyroidism (inadequate thyroid levels) or hyperthyroidism (excessive thyroid levels). Both conditions are characterized by a distinctive set of symptoms, the most common of which are mentioned below.