Your sense of smell can make or break your day. A pungent smell left behind by the rotting vegetable in the fridge or cooking a broth; the molecules fill the air with their aroma, which easily creeps its way into your nostrils. But what about the weird smell coming to your nose that is originating from within? Strange right?

Smelling unwanted fragrances is something inevitable, but there is a chance that the weird smell you are expecting in the nose is generating inside you. Here are some of the reasons for this issue.

9 Reasons Why There Is a Weird Smell Coming In Your Nose

If you have steer cleared regular causes like garbage, rotting vegetables, or any other factor, the chances are that weird smell in your nose is because of the following reasons

Sinus Infection

Sinus infections are divided into two, chronic and acute. This infection can easily distort the sense of smell filling your nose in a weird manner. Sinus infections are scientifically known as sinusitis and are mostly, but not limited to, caused due to a virus.

Sinus infections are common in immune-compromised patients. Knowing the cause is crucial for the appropriate treatment of the infections. Some of the symptoms related to this condition are.

  • Sinus pain
  • Nasal discharge
  • Sinus headache
  • Irritation in throat
  • Cough
  • Sore throat
  • Voice hoarseness
  • Pressure in face


Dental Problems

Bacterial invasion in the mouth can lead to cavities. A cavity looks like a black or brown dot or line that progresses into a large hole. Bacteria present in the hole produces sulfur gas in mouth, which travels up to the nose and smells extremely weird.

Additionally, individuals who lack a proper oral hygiene regime often have food debris left behind in their mouth which is mostly the reason for weird and bad smell going up the noses of people with them.

Food and Beverages

While listing down the reasons for weird bad smells, let’s not forget to include trigger foods that are known for this trait. Some of them are.

  • Onions
  • Garlic
  • Ginger
  • Coffee
  • Tea
  • Spicy food


The medicines we take are metabolized in the stomach. Some residue may be left on the tongue too. Together forming a weird smell that comes up to their nose as well as others.

  • Nitrites
  • Phenothiazine


Dry Mouth

Hydration is crucial to relieve the weird smell in the mouth that is taken up by your nose during sickness and health alike. Saliva is essential to neutralize acids for the odor to not form.


It is a condition in which individuals have fungal balls in their sinus cavities without even knowing it. The bacteria can infect these fungal balls leading to weird smell formation in the nose.

Nasal Polyps

Polyps are non-cancer growth that appears in the nose. The reason for this is persistent inflammation. It increases the pressure in the face as well as depletes sense of smell, leading to false detection of foul odor by the nose.

Nasal Vestibulitis

Bad smell in the nose in this condition is due to over growth of bacteria on the frontal nostrils. If you have the habit of picking your nose often, you are most likely to suffer from infections causing a bad smell in the nose.

Digestive tract issues

Conditions like acid reflux or GERD cause reflux or flushing up the gastric acid from the stomach to the body. This causes bad smell formation in the nose coupled with a metallic taste on the tongue. 


Internal Medicine and Diagnostic Center offers the highest quality of primary care in all of Houston and Magnolia, TX. Our services extend from diagnostic testing for diabetes to minor emergencies. Call now to opt for the best treatment available at (281) 252-8600.

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