Number of faces

I just realized something weird.

When I enter edit mode with a humanoid mesh, in the upper part of the Blender window, where the number of faces is shown (FA) it says ~21000 faces. However, when I go to Object Mode, it says ~10000 faces. This happens in the render window, it tells me ~10000 faces.

I know there are techniques which only render what’s on screen and so, but it’s been bugging me to know why it does this.

Uh. I am not quite sure this goes here, but well… yeah.

In the end, which one is the real poly count, the one in edit more or the one in object mode?

In Edit mode it’ll be something like 2 - 1000, which means of the 1000 faces in the Object 2 are selected.