text: i have two 3cm cysts in my thyroid now what? i just found out i have these cysts one on each side of my thyroid i had an ultrasound done and it showed they wre not malignant and my blood work was normal but i'm still worried should i be? what are the treatments for this? the urgent care doctor said not to worry and to follow up with my regular doc so what should i expect? does anyone know? if they aren't malignant, it shouldn't be a problem, but they do need to be monitored.  if they do turn malignant, they will need to be removed and you will probably need radiation treatment for them - not chemo.