I've been reviewing some classic technical analysis patterns, and the hammer candlestick is one of those that really worth understanding well if you're trading crypto.

Here's the thing: after a sharp decline, when the market hits a support level or oversold zone, this pattern sometimes appears, giving you an interesting clue about what might come next. It's especially common on Bitcoin, Ethereum, and altcoin charts.

So, how do you recognize a hammer? It has three clear characteristics. First, the body is small, it can be green or red, it doesn't matter much. The important thing is that the lower shadow is much longer, at least twice the length of the body, as if the market was pushed down forcefully but then buyers recovered it. The upper shadow is short or almost nonexistent.

What you see there is a reflection of the battle between sellers and buyers. Sellers push the price down, but buyers have enough strength to close near the open. This generally suggests a potential bullish trend reversal, but here’s the key point: you can't rely on this alone.

A clarification: the normal hammer candlestick has that long lower shadow, but there is also the inverted hammer, which is the opposite, with a long upper shadow. They are different patterns with different implications.

My advice after seeing this in action across various markets: always use it combined with other tools. Check the volume, look at RSI or MACD indicators, confirm with subsequent movements. Trading involves real risks, so don’t make decisions based solely on one pattern. Look for confirmation, wait for the next move, and remember that these patterns work best when they appear at key resistance or support levels where the market was already expecting a turn.