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Andrea J Cecur DVM
Andrea J Cecur DVM, Veterinarian
Category: Dog
Satisfied Customers: 421
Experience:  18+yrs veterinary experience in small animal medicine
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why do dogs have a sulfur smell when they pass gas

Customer Question

I have a 7 year old border collie and she just started smelling like sulfur when she farts and burps does this mean anything
Submitted: 11 years ago.
Category: Dog
Expert:  Andrea J Cecur DVM replied 11 years ago.
The odor of sulfur is a normal digestive by-product - hydrogen sulfide. Changes in the amount of this smelly gas can be influenced by change in diet or digestive tract health. Here is a great link to an article with everything you wanted to know about dog farts: