Hello – I saw one British study that looked at the risk of getting other autoimmune diseases for Graves’ and Hashi’s patients, and MS was not one of the most common ones, but there definitely *is* a risk for Graves’ patients to get a second autoimmune disease.
The article used to be open access, but now you have to register on the site to see it (registration is free):
(Note on links: if you click directly on the following link, you will need to use your browser’s “back” button to return to the boards after viewing, or you will have to log back in to the forum. As an alternative, you can right-click the link and open it in a new tab or new window).
http://www.familypracticenews.com/home.html
If you do a search for Dr. Kristien Boelaert, the article should pop up. It’s called “Graves’ and Hashimoto’s Linked to Comorbidities”.
Hope this helps!