Surgeon's Knot

Difficulty: Easy Strength: High Purpose: Line-to-line
Surgeon's Knot

How to Tie the Surgeon's Knot

  1. Lay the two lines alongside each other, overlapping about 15 cm.
  2. Form a simple loop with both lines together.
  3. Pass both the tag end and the entire leader through the loop twice.
  4. Moisten and pull all four ends to tighten. Trim tags.

Pros

  • Very easy and quick to tie
  • Works well with lines of different diameters
  • Reliable strength even when tied quickly

Cons

  • Bulkier profile than the Blood Knot
  • Not as streamlined through rod guides

Best Used For

Quickly joining leader to tippet in fly fishing, or connecting two lines of different diameters.