Chunk missing from DDs tongue?

[SingSweetNightingale]

My DD is almost 5 months old. No issues with feeding but I’ve noticed this morning her tongue has a chunk missing almost like it’s blistered and come off. Sorry if that doesn’t describe it well. I’ve attached a photo.
Should I be doing something with it? It doesn’t seem to be bothering her at all

That looks like a very normal tongue to me. I think the surface can slough off when eating rough foods.

There is something called geographic tongue. One of mine had it when small. It did go away eventually.