Sick as a Dog

Sick as a Dog

If you've ever been very sick, you may have used this expression. Because dogs eat just about anything they find, they often get sick. So it's fitting to describe someone who is not feeling well as being "sick as a dog." Arf!

Reviewed by: Mary L. Gavin, MD





Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

© 1995-2014 The Nemours Foundation/KidsHealth. All rights reserved.





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