A higher low in a trendline is a bullish price structure where each successive pullback stops at a level higher than the previous low, indicating that buyers are stepping in earlier on every dip. When these rising lows are connected using a trendline, it shows strengthening demand and sustained buying pressure in the market. This pattern reflects improving market sentiment, as sellers are unable to push prices down to earlier levels, and it often appears during healthy uptrends or before a bullish breakout. Traders use higher lows to identify trend strength, spot potential support zones, and plan low-risk buy opportunities near the trendline.