Soooo, I've caught my 4mth old Yorkie eat her own poop a few times! The first time my husband told me he saw her doing that I didn't believe him but now that I've seem her doing it Im grossed put AND worried she can get sick!! At first i thought that it was because she had ran out of food so I make sure her food doesn't go low but she still does it

Is this normal? Is there anything I can do to make her stop doing this!!??