GENERAL HISTOLOGY

Detailed explanation-1: -Graves’ disease is an autoimmune disease in which your immune system attacks healthy tissue in your thyroid gland for unknown reasons. It’s the most common cause of hyperthyroidism, a condition in which your thyroid gland makes too much thyroid hormone.

Detailed explanation-2: -Graves’ disease is an immune system disorder that results in the overproduction of thyroid hormones (hyperthyroidism). Although a number of disorders may result in hyperthyroidism, Graves’ disease is a common cause. Thyroid hormones affect many body systems, so signs and symptoms of Graves’ disease can be wide ranging.

Detailed explanation-3: -Hyposecretion of the thyroid gland.

Detailed explanation-4: -It is due to an abnormal immune system response that causes the thyroid gland to produce too much thyroid hormone. Graves disease is most common in women over age 20. But the disorder can occur at any age and can affect men as well.

Detailed explanation-5: -Hypothyroidism, caused by an underactive thyroid gland, typically manifests as bradycardia, cold intolerance, constipation, fatigue, and weight gain. In contrast, hyperthyroidism caused by increased thyroid gland function manifests as weight loss, heat intolerance, diarrhea, fine tremor, and muscle weakness.