BLUSHED OR FLUSHED is a term used to describe the reddening of the skin, usually due to embarrassment or physical exertion. It is also known as 'flushing' and is caused by an increase in blood flow to the face. The term BLUSHED OR FLUSHED is often used interchangeably, although there are subtle differences between the two. Blushing is usually associated with embarrassment, while flushing is more commonly associated with physical activity.