What is the consequence of a fencer committing a "yellow card" offense?

A "yellow card" offense in fencing results in a warning issued to the fencer. This warning is a critical aspect of the sport's rules, as it serves to inform the fencer that a particular action or behavior contravenes the regulations without imposing immediate or severe consequences. The aim is to encourage sportsmanship and adherence to the rules, allowing the fencer an opportunity to correct their behavior as the bout continues.

In contrast, if a fencer continues to violate rules after receiving a yellow card, more severe penalties may follow, such as a red card, which can result in points being awarded to the opponent or even disqualification. The concept of a yellow card is fundamental in promoting fair play while maintaining the flow of the competition.