Skip to Content
Home > Wellness > Health Library > Medical Errors
A medical error is an unexpected and undesired event (adverse
event) that results directly from the health care or services you receive but
which could have been prevented.
Errors may happen when a health professional fails to complete a
planned action or treatment as it was intended, or uses an incorrect plan for
an action or treatment, such as giving a patient the wrong medicine or dose or
giving someone a medicine they are allergic to. Errors can also happen when
medical equipment or devices are used incorrectly. Errors may also happen when
medical equipment or devices fail. Adverse events, whether due to a medical
error or not, are not complications of disease or expected side effects of
medicines or other treatments. An adverse event may result in injury or
Current as of:
November 20, 2015
Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
I Want To...
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.