Graves' disease. Graves' disease is the most common cause of overactive thyroid. It can run in families and can occur at any age, although it is most common in women aged 20-40 years old. You are more likely to develop Graves' disease if you smoke. Graves' disease is an autoimmune condition.
Full Removal. If your doctor removes your entire thyroid, your body will begin to exhibit symptoms similar to hypothyroidism, due to the lack of thyroid hormones in your body. These symptoms may include fatigue, elevated cholesterol levels, uncontrollable weight gain, muscle weakness and depression.
Thyroid surgery is done for many thyroid conditions, including thyroid cancer and sometimes non-cancerous thyroid conditions such as nodules, cysts, goiters (large thyroid glands), and overactive thyroid glands. The purpose of thyroid surgery is to remove part or all of your thyroid gland.hyroid surgery is done for many thyroid conditions, including thyroid cancer and sometimes non-cancerous thyroid conditions such as nodules, cysts, goiters (large thyroid glands), and overactive thyroid glands. The purpose of thyroid surgery is to remove part or all of your thyroid gland.