How would you know if you'd pulled or lost some grafts?

[Sharp]

I've done a lot of research on hair transplants and graft anchorings but one thing I've never been able to find a definitive answer for, is how could someone be certain that a graft (or multiple grafts) has been lost? 

I understand that after a couple of days leading up to a week, it gets harder and harder to accidentally dislodge a graft. However it is still possible. 

Losing a hair is normal, losing a scab is normal. Losing a hair attached to a scab or crust is also normal. But what isn't normal? 

I'm asking this question simply because I'm curious and unaware. 

[Melvin- Admin]

 

[Britanium]

Losing a graft or grafts usually you will see a lot of blood loss. Like a trickle or stream from the area affected.

[aaron1234]

Yup, it'll be obvious.  I accidentally pulled a graft out once while trying to clean off some scabs, about 6 days post-op, and it bled down my scalp.  It was a 3 hair graft, sad day.