Any player, coach, or observer should call an injury timeout for a player who is bleeding or has an exposed open wound.
This timeout takes effect when the call is made (i.e., is not retroactive to the time of injury). If the disc is in the air or the thrower is in the act of throwing at the time of the call, the timeout begins when the play is completed. However, the disc is returned to the thrower if avoiding potential contact with the bleeding player is determined to have affected the play.
This timeout may last up to 70 seconds, during which time the injured player must have the wound effectively covered in order to return to the point in progress.
If play cannot be restarted with the injured player's wound effectively covered in 70 seconds, the player's team may either
A bleeding or exposed open wound is "effectively covered" if it is covered with a dressing sturdy enough to withstand the demands of activity and able to prevent bodily fluids from coming in contact with other players.