The Surgeon’s Loop, or Surgeon’s End Loop, is much like a Double Overhand Knot and is used to make quick and easy loop-to-loop connections, though it is also useful for making fixed loops on which a fly or a lure can move naturally.

You can easily use the Surgeon’s Loop to add store-bought, pre-looped Snell leaders to the end of your line. Just pass the leader of the hook through the loop of the Surgeon’s End, then thread the hook of the leader back through its own loop and pull it tight to secure.

The Triple Surgeon’s End Loop adds one more pass of the line through the first overhand knot to add strength and security. Learn how to tie the Surgeon’s End Loop Knot following the 5 simple steps below.