Iodine deficiency can have various causes, just like most other symptoms. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose iodine deficiency, we could:
Have you tried the Iodine Patch Test within the past 6 months? If so, how long did it take for the iodine patch to disappear after it was painted on your arm?
Possible responses:→ Never tried it / over 6 months ago / don't know
→ Less than 4 hours
→ 4 to 8 hours
→ 9 to 12 hours
→ It lasts at least 12 hours (normal)