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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Blacking Out, Fainting, or Loss of Consciousness

That's good. But even without these symptoms, you might need rapid medical evaluation.

You always need to contact your doctor immediately if:

- This has never happened to you before

- Your reason for blacking out in the past was never diagnosed

- This most recent episode is not exactly the same as the past episodes for which you did have a diagnosis

- You are surprised that it has happened again at this time

Do any of the above apply to you?

Yes, one or more do apply to me.

No, none of those apply to me.

Disclaimer: This content should not be considered complete and should not be used in place of a call or visit to a health professional. Use of this content is subject to specific Terms of Use & Medical Disclaimers.