Hello, I'm not feeling very strange today, I'm writing here. My son is…

Hello, I'm not feeling very strange today, I'm writing here. My son is two years old and he has a little spot under his eye. Today while he was sleeping, I looked at it! It turns out that it's a small mole (the size of a ballpoint pen). What is the probability that it will grow? Or maybe it disappeared? Maybe your children had one and then it disappeared, or did it increase along with the child's growth?