Use AI to prepare for medical care, not to avoid it. That one line covers most of what you need. The rest of this page is the detail.
The five essential questions
Ask these every time you use AI for health:
- "What are you basing this on?" look for specific sources you can verify.
- "What can you NOT detect remotely?" this reveals what it is missing about you. Most important; it has saved lives.
- "What would require emergency evaluation?" get specific red flags to watch for.
- "What are you uncertain about?" test whether it acknowledges limits.
- "What should I ask my actual doctor?" prepare for the visit.
When to call 911, not ask AI
If you are worried enough to ask whether it is an emergency, call 911.
Good vs bad AI use
Good (safe, helpful)
- "I was diagnosed with diabetes; help me understand it."
- "I was prescribed metformin; what are the side effects?"
- "What questions should I ask my doctor about my headaches?"
- "My doctor said modify my diet; what does that mean?"
- "How does blood pressure work?"
Dangerous
- "I have chest pain, what do I have?"
- "Do I need to see a doctor?"
- "What should I take for this?"
- "Can I stop or change my medication?"
- Using AI instead of keeping appointments
The velociraptor test
"Would I notice this symptom while running from a velociraptor?" Yes: probably significant, seek care. No: might be minor, can monitor. Your body was debugged by 3.8 billion years of evolution; the AI was trained on text. When they conflict, trust your body. Every time.
Spotting a hallucination
Never says "I do not know"; vague sources ("studies show"); overly specific without caveats; perfect confidence about everything; cannot explain its reasoning; contradicts itself. Three or more: do not trust it; verify with a doctor or a reputable source.
What AI cannot do
It cannot examine you, measure your vital signs, see how sick you look, run tests, detect skin changes, assess your breathing, distinguish similar conditions, know your full history, or take responsibility for wrong advice. Zero sensors against your ten billion. That is why it cannot replace a doctor.
Before you act on anything it says
- Check the sources, are they specific and verifiable?
- Cross-reference a reputable site (Mayo Clinic, NIH/MedlinePlus, CDC).
- Ask the five essential questions.
- Test for hallucination red flags.
- When in doubt, confirm with a doctor.