Injured Leg or Worm/Parasite?

[CaptAndrews]

I quarantined one of the ghost shrimp for fear or a worm/parasite. But after inspection, I think it may be that one of his legs was injured and is turning white. There is a red spot near where this attaches to his body. Thoughts appreciated.

 

[Demeter]

Looks like a bum leg to me, hopefully it will not cause any issues. I'd expect it to fall off soon.