How quickly does papillary throid cancer grow?

Relatively slowly: Papillary thyroid cancer is typically a slow growing cancer. However, if left alone it can invade into the surrounding structures and spread to lymph nodes or other parts of the body. If you have thyroid cancer, it's best to get it treated unless you are not able to undergo surgery. There is a high cure rate when caught early.

Variable growth.: It depends on the cancer size and the individual. In general terms, it is more indolent (slow growing) in females under 45 and more aggressive in males over 45.