Hi
It is all normal, if a small bone segment is left in the socket after extraction, the body will remove it as this sequestra moves toward the gum and finally shed.
Just maintain a proper oral hygiene, if you feel afraid of this, seeing your doctor is advised
Best wishes
Hi, I had this and it was super annoying. Apparently it is normal. I wouldn't panic. Just rinse with warm salty water if it is bleeding. Go and see your dentist if it is still being a nuisance on monday. Hope this helps