What is Hyperthyroidism?

Hyperthyroidism means your thyroid is overactive and making too much hormone. The most common cause is Graves' Disease, an autoimmune condition where antibodies trick the thyroid into running a marathon 24/7.

What are the symptoms?

Your metabolism is in "overdrive":

• Unexplained weight loss despite increased appetite.
• Rapid or irregular heartbeat (palpitations).
• Anxiety, irritability, and tremors (shaking hands).
• Heat intolerance and excessive sweating.
• Insomnia.
• Graves' Eye Disease: Bulging or irritated eyes.

How is it treated?

There are three main options. You and your doctor will choose the best one for you:

Anti-Thyroid Medication (Methimazole or PTU): Pills that block the thyroid from making hormone. They can control the disease, and in some cases, lead to remission (the disease goes away).

Radioactive Iodine (RAI): A pill containing radioactive iodine is swallowed. The thyroid absorbs it, and the radiation destroys the overactive thyroid cells over weeks/months. This usually results in hypothyroidism (requiring lifelong hormone pills).

Surgery (Thyroidectomy): Removing the thyroid gland. This is preferred if the gland is very large (goiter) or if eye disease is severe.

Is it dangerous?

If untreated, it can lead to "Thyroid Storm," a life-threatening heart condition. It also causes rapid bone loss (osteoporosis). Treatment is essential.