Sinus and respiratory infections may also cause a person's breath to smell like feces. Infections like bronchitis, colds, viruses, and strep throat generate bacteria that move from your nose to your throat, causing pungently offensive breath.
There are a number of health conditions that can cause bad breath in children, including diabetes, thrush, infections (like the sinus infection we mentioned), gastroesophageal reflux and, rarely, problems with the liver or kidneys.
As terrible as it may sound, if your breath smells like fecal matter, it is very likely that you have an obstructed bowel. A bowel obstruction occurs when the stool begins to back up, and the large and/or small intestines are no longer able to process the waste.
If your child has chronic bad breath as well as abdominal pain, nausea, vomiting, or heartburn, then gastroesophageal reflux disease (GERD) is a possible culprit. In this condition, stomach acid will reflux (travel up) the esophagus, often into the throat or mouth, and in some cases, out the mouth.
Sinus infections, tonsillitis, and some seasonal allergies can cause bad breath. If you're concerned about your toddler's bad breath you should consult your child's doctor or dentist.
One of the most obvious signs of diabetes in children is the development of sweet-smelling, fruity breath. This is because of the build-up of toxic acids in the bloodstream and the urine. These toxic acids, known as ketones, cause a fruity smell.
Eighty percent of people with irritable bowel syndrome (IBS) also have SIBO, which can develop after gastric infections. Patients who have fructose malabsorption, lactose intolerance, or eat a lot of fiber can develop SIBO. Gasses produced in SIBO are the major cause of complaint and may cause bad breath.
Excessive Gut Bacteria
Excessive bacteria in the small intestine can cause extreme amounts of rotten-smelling gas and belching, causing your breath to have an unpleasant smell. This condition is referred to as small intestinal bacterial overgrowth (SIBO).
It's rarely advisable for kids under the age of 6 to use mouthwash. There are two reasons for this: 1) Too much exposure to fluoride (contained in most mouth rinses) while permanent teeth are still developing can create a condition called fluorosis. Fluorosis creates unsightly spots or streaks on the teeth.
A lot of bacteria can stay on the tongue even through a good tooth brushing, so make sure that's cleaned too. You can also try to have your child drink more water. Water will help increase saliva production so the bad breath bacteria can be washed away.
Preventing Smelly Breath
Don't smoke or use tobacco products, of course. And take care of your mouth by brushing your teeth at least twice a day and flossing once a day. Brush your tongue, too, because bacteria can grow there. Flossing once a day helps get rid of particles wedged between your teeth.
Encopresis (en-ko-PREE-sis), sometimes called fecal incontinence or soiling, is the repeated passing of stool (usually involuntarily) into clothing. Typically it happens when impacted stool collects in the colon and rectum: The colon becomes too full and liquid stool leaks around the retained stool, staining underwear.
Breath that smells sour
If you have GERD, your breath may sometimes smell sour, like partially digested food.
Gastroesophageal reflux disease (GERD).
Persistent acid reflux happens when stomach acid pushes up into the esophagus. This misplaced stomach acid may itself cause bad breath — or, because stomach acid erodes tooth enamel, it can lead to the crevices that trap food.
Helicobacter pylori gastric infection can be a cause of bad breath.
GERD or reflux — Bad breath can be a sign of Gastroesophageal Reflux Disease or GERD. If you tend to have heartburn or reflux, your bad breath could be related to the excess acid produced by your digestive tract. Those acids can have a sour odor, affecting your breath.
Most people who have bad breath from the digestive system describe a rotten egg smell. This is due to gut microbiota that break down sulfur, releasing an eggy-smelling gas. For some people. However, the smell is a more rotten, putrid smell.
Helicobacter pylori infection
H. pylori is a type of bacteria that can affect the stomach. It can cause stomach ulcers and even stomach cancer. It's also known to cause both sweat and breath that smells like ammonia or urine.
Fecal Smell
A bowel obstruction occurs when stools start to back up, resulting in the large and/or small intestines no longer being able to process waste. Breath that smells like poop combined with constipation is a good sign that you have a bowel obstruction.
It can take months or years before symptoms of type 1 diabetes are noticed. Type 1 diabetes symptoms can develop in just a few weeks or months. Once symptoms appear, they can be severe. Some type 1 diabetes symptoms are similar to symptoms of other health conditions.
Your child will need to fast overnight and then drink a sugary liquid at the health care provider's office or a laboratory testing site. Blood sugar levels are tested periodically for the next two hours. A blood sugar level of 200 mg/dL (11.1 mmol/L ) or higher generally means your child has diabetes.
If the adenoids continue to grow, your child may have bad breath, cracked lips, and a dry mouth. Your child might breathe a lot through his mouth. That's because his airway can become blocked, and he may have trouble breathing through his nose. Your child may even stop breathing at times during sleep.