Why do I get a sharp pain deep in my ear canal when it is freezing cold outside?

Why do I get a sharp pain deep in my ear canal when it is freezing cold outside?

1. Introduction A sharp pain deep in the ear canal during freezing weather occurs because the external auditory meatus possesses virtually no insulating adipose tissue, leaving its dense network of sensory nerves directly exposed to extreme thermal shifts. Rapid drops in ambient temperature cause sudden and intense vasoconstriction of the local blood vessels. This restricts … Read more