Surgeon's Knot

Description

The surgeon's knot is a modification of the reef knot where the first crossing uses two wraps instead of one, creating extra friction that holds the knot in place while the second tie is completed. This extra friction prevents the knot from loosening before it is fully secured.

Common Uses

Commonly used in surgery for ligatures and sutures, and in fishing for tying leaders and attaching hooks where extra security is needed.

When to Choose This Knot

Choose this knot when joining two rope ends. Bends work best when rope diameter, material, surface texture, and expected load are considered together.

Safety Notes

• Avoid joining ropes of very different diameter or stiffness unless the bend is designed for that purpose.
• Set both sides evenly and leave enough tail on each rope.
• Do not use an unfamiliar bend in a life-safety system without supervised practice and inspection.

How to Tie

1. 1Cross the two ends and wrap one around the other twice for the first throw.
2. 2Pull tight to secure the double wrap.
3. 3Cross the ends again and make a single overhand wrap for the second throw.
4. 4Pull tight to complete the knot.
5. 5Trim the excess ends close to the knot.

Common Mistakes

• Tying the two sides asymmetrically.
• Using a bend for a slippery cord without adding the required backup or stopper.
• Assuming a bend that works in dry rope will behave the same when wet, icy, or dirty.

Similar Knots