Hyperthyroidism is a metabolic disorder in which the thyroid gland hormones excreted excessively. The most common symptoms of hyperthyroidism are increased overall metabolism, increased heart rate, arrhythmias, insomnia, irritability, nervousness, heat intolerance, weight loss, tremors, tachycardia, and sometimes, a protrusion of the eyeballs. On the other hand, hypothyroidism is the decrease in the production of thyroid hormones which, depending on when it occurs, it may affect a greater or lesser extent to the development of vital organs. Idiopathic primary hypothyroidism occurs due to antibodies against the thyroid, or other autoimmune disorders cause ( autoimmune hypothyroidism ). Hypothyroidism has symptoms of muscle fatigue, choking sensation or pain in the thyroid area, loss of hair, rough and dry skin and progressive deterioration of intellectual activity. Due to the difference between hyperthyroidism and hypothyroidism medication treatment will be also different and tailored to each patient.