If blood is allowed to pool in the lower areas of the body, the brain will be deprived of blood leading to temporary hypoxia (medical).

When checking to see if the other driver is all right, she finds a trail of blood leading into the forest.

They also brought in police dogs to sniff a trail of blood leading away from the scene of the second shooting.

Several feet from where she fell was a trail of blood leading to an old ruined building.

To make matters worse, Riddick reveals that Jack is a girl and undergoing her menstrual cycle, the scent of blood leading the creatures to them.

He left a trail of blood leading away from the victims to the rear of the residence and out to the alley.

It is very poisonous for the blood leading to pink coloration of the skin and inner suffocation.

Two steps away he noticed a long smear of blood leading away from the rig.

And we left a trail of blood leading straight to the Portal-which, you can be sure, they now know is not a garderobe.

And the blood leading to the edge looks like drain too.