My youngest daughter is 4 1/2, will be 5 in December. Her bottom teeth are loose, and I didn't know if this is normal at this age or not. My oldest daughter didn't start to lose hers until she was about 6 years old. Is she losing her bottom teeth too fast?

I was five when I lost my first tooth eating a hamburger. I don't know how many months after I turned five, but your situation doesn't sound to early to me.

Every child is different so this would not be too early. She may have even fallen when you didn't know it and loosened the teeth a bit making them more suseptible to falling out early.