# What is inside heel hook vs outside heel hook?

Inside heel hooks attack the knee by rotating the heel toward the inside of the body - they primarily stress the ACL and are considered more dangerous. Outside heel hooks rotate outward and stress different structures. Both require careful training and early tapping.

**[Read full answer on BJJ Notes](https://www.bjjnotes.app/knowledge-base/what-is-inside-heel-hook-vs-outside-heel-hook)**

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**Tags:** technique, no-gi

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