After treatment for Graves disease, some people need to take thyroid hormone medication for the rest of their lives, and others stop all medication without the disease returning.

We analyzed the available evidence and found that after treatment for Graves disease, some people need to take thyroid hormone medication for the rest of their lives, while others are able to stop all medication without the disease returning [1]. This means there is no single answer that applies to everyone. The evidence we’ve reviewed so far does not show that lifelong hormone replacement is required for all individuals, but it also does not suggest that stopping medication is safe or common for everyone. What we’ve found suggests that outcomes vary from person to person, and whether someone continues or stops hormone therapy depends on factors like how their body responds after treatment, the type of treatment they received, and how their thyroid function changes over time. We have not seen any evidence that contradicts this pattern, but we also do not have enough detail to say why some people can stop and others cannot. For now, the best approach appears to be monitoring thyroid function closely after treatment and adjusting medication based on individual results, not on a one-size-fits-all rule. If you’ve been treated for Graves disease, your doctor will likely check your hormone levels regularly to see if your body can manage on its own — or if you need to keep taking medication.