Surgeon's Loop
Also known as:Blood Loop
Description
A simple, strong loop tied in the end of a fishing line using a doubled line. Essentially a surgeon's knot tied with a loop left at the end.
Common Uses
Creating a fixed loop at the end of fishing leader for attaching hooks or lures loop-to-loop.
When to Choose This Knot
Choose this knot when connecting line to hooks, lures, swivels, leaders, or other line. Fishing knots are sensitive to line material, diameter, wetting, and how evenly the coils seat.
Safety Notes
- Wet monofilament or fluorocarbon before tightening to reduce friction damage.
- Trim tags only after the knot is fully seated and pull-tested.
- Use eye protection when testing line under tension.
How to Tie
- 1Double the line to form a loop of the desired size.
- 2Tie a simple overhand knot with the doubled line.
- 3Pass the loop through the knot one more time (making it a surgeon's knot).
- 4Moisten and tighten by pulling both the loop and the standing end.
Common Mistakes
- Burning or weakening line by tightening too quickly while dry.
- Leaving crossed coils that cut into each other.
- Using a knot that is not suited to braided, fluorocarbon, or monofilament line.