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The Blood Knot - Fishing Knots

The Blood Knot

Blood Knot

The blood knot is used to join together two lines of equal diameter. It is commonly used to extend a leader, especially when flyfishing. When using a tapered leader on a fly line, you can extend its life by tying on extra tippet when the most narrow part of the tapered leader has been used up or broken off.

Here is how to tie the Blood Knot:

  1. Blood Knot
    Take the two lines' ends and tie a simple overhand knot (which will be clipped off later). Then tighten to combine the two lines into one.
  2. Blood Knot
    Form a loop where the two lines meet, with the overhand knot in the loop. Pull one side of the loop down and begin taking turns with it around the standing line. Keep point where turns are made open so turns gather equally on each side.
  3. Blood Knot
    After eight to ten turns, reach through center opening and pull remaining loop (and overhand knot) through. Keep finger in this loop so it will not spring back. Hold loop with teeth and pull both ends of line, making turns gather on either side of loop.
  4. Blood Knot
    Set knot by pulling lines tightly as possible. Tightening coils will make loop stand out perpendicular to line. Then clip off the loop and overhand knot close to the newly formed knot.