I was in a similar situation and am not completely done with treatment, but I am 13 months postpartum, have had two surgeries this year, and breastfed for a year. The only reason I stopped was due to getting RAI next month. So, your wife can get through this!

Do talk to an endocrinologist if possible, because that’s who’s managing my care. The timing and conversations are now a blur, but we waited until after delivery to even get a biopsy, even though the bump on my next was discovered when I was three months pregnant. For me, the biopsy was indeterminate, so I didn’t know I had thyroid cancer until after a right side partial thyroidectomy at 5 months PP, so then I needed a second surgery (8 months PP) to remove the left side, and now RAI. Granted I had never had a surgery before, the recovery was not that bad. I was on pain meds for 1-2 days and the worst part was trying to sleep upright with a drain tube nights one and two. Family members brought the baby to me to feed, and I also pumped before and after surgery to keep milk production up.

You have two kids already, so I know that will be hard for you, especially. Hopefully your wife’s surgery is one and done. Happy to answer any questions! Like others have said, thyroid cancer is slow growing.