As a result, blood pools in the veins and causes them to get larger.

Later studies showed the artificial blood caused a significant increase in the risk of heart attacks and death.

I thought you said the dying blood would cause them harm.

When these valves stop working efficiently, blood pools in the veins and causes them to become enlarged.

Increased blood pooling there causes moisture to seep from the walls.

The blood from this lost organ then causes another tree to spring up!

Swallowing excess blood can irritate the stomach and cause vomiting.

The blood might eventually seep downward and cause black eyes.

The dirt and blood that came off from his body caused the death of the river's fish, crabs, and shrimp.

It was the sensations his blood caused in her skin that made her so passionate.