# What is a heel hook?

A heel hook controls the foot and twists the knee by rotating the heel. It attacks the ligaments inside the knee - ACL, MCL, meniscus. Heel hooks are dangerous because damage happens before pain signals arrive. They are banned at lower belts in most gi competitions but legal in advanced no-gi. Tap e...

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**Tags:** technique, no-gi

**Source:** [BJJ Notes Knowledge Base](https://www.bjjnotes.app/knowledge-base/what-is-a-heel-hook)