10 doctors weighed in:

Can my hyperthyroidism come back even though i've already had radiation therapy?

10 doctors weighed in
Dr. Susan Wingo
Internal Medicine - Endocrinology
5 doctors agree

In brief: Yes

Radioactive iodine treatment for hyperthyroidism has a 5-10% failure rate.
Failure can be either persistent hyperthyroidism more than 6 months after treatment, or recurrent hyperthyroidism after a treatment resulted in hypothyroidism, as expected. Careful discussion with your doctor about risks and benefits of a second (or even third) radioactive iodine treatment vs surgery is needed.

In brief: Yes

Radioactive iodine treatment for hyperthyroidism has a 5-10% failure rate.
Failure can be either persistent hyperthyroidism more than 6 months after treatment, or recurrent hyperthyroidism after a treatment resulted in hypothyroidism, as expected. Careful discussion with your doctor about risks and benefits of a second (or even third) radioactive iodine treatment vs surgery is needed.
Dr. Susan Wingo
Dr. Susan Wingo
Thank
Dr. Quang Nguyen
Internal Medicine - Endocrinology
4 doctors agree

In brief: Yes

Some people might need a second treatment to successfully treat the hyperthyroidism.

In brief: Yes

Some people might need a second treatment to successfully treat the hyperthyroidism.
Dr. Quang Nguyen
Dr. Quang Nguyen
Thank
Dr. Bahman Daneshfar
Radiation Oncology
2 doctors agree

In brief: Yes

Assuming you are talking about radioactive iodine, yes.
When hyperactive thyroid is given iodine for treatment you hope for normalizing the function. But 25 percent of the time the hyper function can recur and retreatment is necessary.

In brief: Yes

Assuming you are talking about radioactive iodine, yes.
When hyperactive thyroid is given iodine for treatment you hope for normalizing the function. But 25 percent of the time the hyper function can recur and retreatment is necessary.
Dr. Bahman Daneshfar
Dr. Bahman Daneshfar
Thank
Dr. Mike Bowman
ENT - Head & Neck Surgery
1 doctor agrees

In brief: It is possible

But very unlikely.
A simple lab test can check the status of your thryoid hormones. Your endocrinologist or pcp can order that test for you.

In brief: It is possible

But very unlikely.
A simple lab test can check the status of your thryoid hormones. Your endocrinologist or pcp can order that test for you.
Dr. Mike Bowman
Dr. Mike Bowman
Thank
Get help from a real doctor now
Dr. Keegan Duchicela
Board Certified,
10 years in practice
16M people helped
Continue
108,000 doctors available
Read more answers from doctors