questions about fur being pulled out?

[Leopold_Ruby]

So as I was cleaning up the sheet that covers my pairs area, I noticed all these clumps of hair from my female. Like A LOT! She has no wounds so I don't think they were fighting, is it possible she yanked it out herself and why? My male is neutered.

 

[SouthernNetherlandDwarf]

Probably she is going through a false pregnancy or she is shedding her fur.