BJJ Rehab Assistant

AI Injury Diagnosis

Get a real BJJ injury diagnosis — not a guess — in five minutes.

Describe what happened on the mats. We narrow it down to a specific, named diagnosis using the same mechanism, symptoms, and self-tests a physiotherapist would run in clinic — because the logic underneath is a clinician-authored decision tree, not a language model improvising.

Can AI diagnose a BJJ injury? Yes — by combining your description of the mechanism with the results of guided self-tests, then scoring them against a fixed, physiotherapist-authored decision tree. Same inputs, same output, every time. It's free and takes about five minutes.

No signup required · ~5 minutes · Free

How the diagnosis engine works

  1. Describe the mechanism. Tell it where it hurts and what you were doing — stack pass, heel hook entry, kimura defense, getting underhooked. This is the same history a physiotherapist takes in clinic.
  2. Run guided self-tests. The tool walks you through targeted orthopedic self-tests — empty can, Lachman-style knee checks, cervical quadrant — chosen based on your mechanism, and interprets what you report back.
  3. Get a named diagnosis. A clinician-authored decision tree scores your answers against a candidate list of BJJ-specific injuries and returns a specific, named diagnosis when the evidence supports one — not a vague shortlist.
  4. Get routed to the right next step. If rehab is appropriate, you're handed a phase-gated BJJ rehab protocol. If your answers flag a red sign — numbness, inability to bear weight, severe trauma — you're told to stop and see someone in person instead.

Why this isn't the same as asking ChatGPT

A general chatbot generates its answer one token at a time and can sound confident while being wrong — there's no fixed medical logic underneath, just a language model predicting plausible-sounding text. This tool uses AI for exactly one job: translating what you type into structured clinical inputs. Everything after that — which self-tests to run, how to weigh a positive Lachman against a negative neuro screen, when two candidate injuries are close enough to warrant another discrimination round instead of a guess — is a fixed decision tree written and reviewed by a physiotherapist who treats grapplers.

That determinism is also why the tool can say “I'm not confident enough yet” instead of forcing an answer, and why it can guarantee a hard stop — routing you to in-person or emergency care — whenever your answers flag a red sign. A general-purpose chatbot has no equivalent safety net.

Diagnosis vs. screening vs. protocol

If you just need to know whether an injury is serious right now, a BJJ injury screening is faster triage. This diagnosis tool goes further — mechanism, self-tests, and a named result — and is the same engine behind the full BJJ injury assessment. Once you have a diagnosis, you move into a BJJ rehab protocol built around it.

Frequently asked questions

Can AI really diagnose a BJJ injury?

An AI-guided tool can narrow a BJJ injury to a specific, named diagnosis by combining your description of the mechanism with the results of guided self-tests — the same way a physiotherapist reasons through it in clinic. BJJ Rehab does this for free in about five minutes. The AI's job is limited to understanding your words; the diagnostic logic itself is a fixed decision tree, not a language model guessing.

How accurate is an AI BJJ injury diagnosis?

Accuracy depends on how well the mechanism and self-test results match a known pattern. The engine is built to say so when the evidence is ambiguous — it runs an extra discrimination round or routes you to in-person care rather than forcing a confident-sounding answer it can't support. It is not a substitute for imaging or a clinical exam when those are warranted.

Is this different from asking ChatGPT about my injury?

Yes. A general chatbot generates its answer token by token and can sound confident while being wrong. This tool uses AI only to translate your description into structured inputs — mechanism, symptoms, test results — and then runs those inputs through a deterministic, physiotherapist-authored decision tree. The same inputs always produce the same output, and every branch was written and reviewed by a clinician, not generated on the fly.

Is the BJJ injury diagnosis tool free?

Yes, completely free. You'll be asked for an email address to unlock and save your diagnosis and rehab protocol, but there's no payment, no card details, and no subscription.

Do I need to create an account first?

No. You can start immediately from this page — no signup required to begin the assessment. An email is only requested once your diagnosis is ready, so you can save it and come back to your rehab plan later.

When should I see a doctor instead of using this tool?

Any acute trauma with severe pain, visible deformity, inability to bear weight, numbness, tingling, or loss of function. The tool screens for these red flags automatically during the assessment and will tell you to stop and seek in-person or emergency care when they're present.

Start your BJJ injury diagnosis

Five minutes. No signup. Free.

No signup required · ~5 minutes · Free

Not a substitute for in-person medical care. See our terms.