There can be a slight increase in thyroid
gland size during pregnancy
. That is due to the effect of placental HCG
hormone of pregnancy. This increase in size is mild and may not happen at all.
If there is an increase in size you may require a biopsy
. Current recommendation is to do surgery only if there is an invasive cancer - or else you can wait. Having a nodule doesn't offer an increased risk in pregnancy. So go ahead. Good luck!
Hope I have answered your question. If you have any further questions I will be happy to help.
Dr Ajish TP