Just found out something, should I be worried?

Hi, I was gonna change the eyes of one of my girls today and I noticed this,

 

 

There was a small tear inside her neck, I googled about it at first and other people seems to have this problem, should I be worried and start doing something? (I know the tear is small but I'm afraid that if I don't do something now it will become a big tear in the future )

I wouldn't be. Both Agatha and Nanoha have those nicks around their neck holes, and they don't have any problem at all. Keep in mind, Nanoha was manufactured in 2009, and I got her in 2011--that's plenty of time for it to have escalated. It may just be a bit of wear from sliding around the ridges on the neck peg.

 

(Oddly, my Miku doesn't seem to have that problem, but her head vinyl feels softer than the other two, even though Ags' current head is also squishy headcap type. :/ Think Miku may have just gotten an odd vinyl batch.)

haha i see, I'm afraid that the crack would become bigger and one day her head would just become so loose that her head become "wiggly"

No need to fear, it's pretty common. It won't get any worse if you don't pull the head out of the body too often~