1. Make sure a doctor diagnoses your condition

Because there are so many symptoms of hypothyroidism, it can be difficult for a doctor to diagnose. Hypothyroidism could be present for months or years without any accompanying physical signs. Hypothyroidism can usually be diagnosed easily with a physical exam and laboratory tests if it is suspected. Some of these tests will also be used throughout your treatment to monitor thyroid hormone levels.

The following procedures and tests are often used to diagnose and treat hypothyroidism:

• Medical history. The doctor will ask about any symptoms you may have been experiencing, such as fatigue or weakness, and review previous illnesses.
  
  
• Physical examination. The doctor will look for signs of an enlarged thyroid gland (a goiter) or abnormal nodules or growths on the gland.
  
  
• Blood test. A thyroid blood test can be used to diagnose thyroid conditions or monitor treatment for thyroid disorders.
  
  
• Radioactive iodine uptake (RAIU). A test used to monitor how fast and how much iodine is absorbed by the thyroid gland.
  
  
• Thyroid scan. Often performed along with RAIU. Images are taken of the thyroid gland with a gamma camera. Nodules or tumors can be seen and assessed using these images.
  

2. Get used to taking hormone replacement pills

Hypothyroidism often requires lifelong treatment with thyroid hormone replacement.