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Medically reviewed by Last updated on May 1, 2023.

Hypoxia is a decreased level of oxygen in all or part of your body, such as your brain. Some conditions can cause hypoxia to occur suddenly. Other conditions may cause hypoxia to occur over time.


Follow up with your healthcare provider as directed:

You may need to return for more tests to find the cause of your hypoxia. Write down your questions so you remember to ask them during your visits.

Contact your healthcare provider if:

  • Your muscles jerk.
  • You have questions or concerns about your condition or care.

Return to the emergency department if:

  • You have a seizure.
  • You faint.
  • You are irritable, confused, or unusually drowsy.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.