Why Do I Notice the Smell of Sulfur in My House?

Updated February 21, 2017

If you are smelling sulphur (a rotten egg smell) in your house, one of the causes could be your canine. Gas is a normal part of digestion, but some dogs have particularly sensitive digestive systems and, when something upsets them, it can manifest itself into a flatulence problem. If you suspect your dog is having gastric distress, look at his diet, stress levels and general health to see if you can find the problem.


There are many variables to what causes canine flatulence. Some dogs are more sensitive to certain food ingredients (grains can be a trigger) while others react to any change in their diet such as a new food, treat or table scraps. Unfortunately, some dogs just have more gas than other dogs. This can even be dependent on breeds. Bulldogs and boxers are notoriously gassy but that doesn't mean it can't be controlled or prevented. Canine flatulence is usually harmless to the dog's health, but it can be a byproduct of some medications or disorders. If you are concerned, talk to your veterinarian.


If you have a new dog, you won't know if your dog is sensitive to food changes or certain types of food. Introduce new food slowly and monitor your dog to see if he has a reaction. Dogs should have minimal flatulence if new food is introduced slowly.

Exercise your dog. Exercise helps keep the digestive system healthy and it helps move digesting food through.

Plain, not spiced, canned pumpkin can be soothing on the digestive system. Adding a spoonful during food transitions can help prevent not only flatulence but also diarrhoea.

Dogs that gulp their food down can swallow excessive air which will add to the flatulence problem. Feeding them through an interactive toy will slow them down. There are also bowls designed for dogs who inhale their food.


If you find yourself with a dog that has chronic flatulence or is having digestive distress, there are some things you can do to help them through it. Plain yoghurt can be added to the diet. This introduces natural probiotics to the diet which will help combat flatulence. Digestive enzymes are another addition that can be beneficial to a troubled dog.

If you can't seem to find a food that your dog doesn't react to, try going with a grain-free formula as grains tend to create a lot of gas in the digestive system. If that doesn't work, there are dog food formulas for sensitive dogs. These formulas tend to have fewer, simpler ingredients. Sometimes they are sold as allergy formulas.


Some people believe that all dogs have excessive flatulence and there is nothing that can be done to prevent it. This is not true. All dogs will have gas at some time, but few dogs have to go through their lives being excessively gassy. Most flatulence problems are caused by food issues which can be aggravated by a lack of exercise.

Nervous Dogs

Some dogs are particularly nervous. This can be caused by a history of violence (seen in rescue cases) or it is just the natural temperament of the dog. For these dogs, the nervous behaviour can manifest itself into a flatulence problem. The best way to treat this is by building your dog's confidence. If the problem is chronic, talk to your vet about other options like medication to keep the dog calm.

Other Causes

A sulphur smell can easily be blamed on the dog, but make sure it is the dog. Some sulphur smells can be a sign of a problem in your home. It could be a sign of a plumbing problem, natural gas leak or it could be coming from your water source, particularly if you have a well.

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About the Author

Shara JJ Cooper graduated with a bachelor's degree in journalism in 2000, and has worked professionally ever since. She has a passion for community journalism, but likes to mix it up by writing for a variety of publications. Cooper is the owner/editor of the Boundary Sentinel, a web-based newspaper.