You are more likely to have hyperthyroidism if:
- You are female.
- You have a family history of thyroid problems. People who have close relatives with Graves' disease or other thyroid problems are more likely to develop hyperthyroidism.
- You have an autoimmune disease, such as Addison's disease or type 1 diabetes.
- You smoke cigarettes. People who smoke are more likely to have Graves' disease and are more likely to have Graves' ophthalmopathy.