What Is The "Crumbling Skull Principle" Of Causation?

This is to be distinguished from the "crumbling skull" plaintiff which is someone who has a pre-existing illness or medical condition which would have come to the fore even if the accident had not occurred. For the "crumbling skull" plaintiff the accident may, however, have accelerated the presentation or evolution of the illness or medical condition and this may entitle that person to some measure of compensation in the appropriate circumstances. If it cannot be established that the motor vehicle accident caused or contributed to the plaintiff's condition, which would have remained the same even if the accident had not occurred, causation will not be established and no compensation can be recovered.