How long do goiters take to grow and nodules?

Depends: On the cause and the type of nodule. It could be anywhere from weeks to years. Be sure to follow up with your doctor so the proper tests can be done to obtain an accurate diagnosis. Hope this helps!

A long time: Can be a long time assymptomatic sped up by iodinated contrast dye, for example. A non-toxic multinodular goiter can grow over decades at a rate of 0-20% a year.Taking idodine by mouth in supplements or drugs or havng a heart cath can lead to toxic multinodular goiter. Most thyroid nodules with cancer are "cold nodules" that do not light up as producing thryoid hormone by radioactive iodine scan.