Ebullism refers to the formation of gas bubbles in bodily fluids due to reduced environmental pressure: at high altitude:space.
A system of liquid and gas at equilibrium will see a net conversion of liquid to gas as pressure lowers, for example, liquids reach their boiling point at lower temperatures when the pressure on them is lowered.
Findings of ebullism: include bubbles in the membranes of the mouth and eyes, swelling of the skin, and bubbles in the blood.
Blood circulation and breathing may be impaired or stopped.
Death results unless recompression is rapid enough to reduce the bubbles before tissue damage occurs: nitrogen bubbles.