Surgeon’s Knot This knot ranks as one of the best and easiest to tie knots for joining lines of equal or unequal diameters. It can also be used to join lines of different materials. It is simply two overhand knots with the entire leader pulled through the knot each time. When properly tied, the Surgeon’s Knot approaches 100-percent line strength. It must be tightened by pulling on all four strands to properly seat the knot. Some anglers go with three wraps for added security, but the knot does get a bit bulky.
How tie a Surgeon's Knot

Surgeon’s Knot

1. Lay the line and leader on top of one another overlapping each other by several inches.

2. Form a simple loop

3. Pass both the tag end and the entire leader through the loop 2 times.

4. Moisten knot and pull all 4 ends tight.

See Animated Surgeon's Knot Below

You must install Adobe Flash to view this content.