A Pin Bar is a candlestick pattern in forex trading that signals a potential reversal in market direction. It has a small body and a long wick, indicating a rejection of a certain price level by the market. Traders often use Pin Bars in combination with other indicators to confirm potential trade setups and manage risk. A bullish Pin Bar shows buyers are stepping in, while a bearish Pin Bar shows sellers are taking control. It's important to wait for confirmation before entering a trade based on Pin Bars, as they can also be false signals.