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Are phantom smells normal?

Author

Emily Ross

Published Jan 06, 2026

Experiencing occasional phantom smells is normal and usually goes away on its own in time. When hallucinations of this type do not seem to go away or when they keep coming back, it can be very upsetting and can disrupt an individual's quality of life.

What does it mean when you smell phantom smells?

Brief episodes of phantom smells or phantosmia — smelling something that's not there — can be triggered by temporal lobe seizures, epilepsy, or head trauma. Phantosmia is also associated with Alzheimer's and occasionally with the onset of a migraine.

When should I be concerned about phantom smells?

However, phantosmia can be a sign of a serious underlying condition, so people should always discuss this symptom with their doctor. Some phantom smells are pleasant, but people with phantosmia more often describe unpleasant, foul, or disgusting odors. These may include: burnt toast.

How common are phantom smells?

Phantom smells can be a sign of a serious health problem, but until now it's not been known how many people experience them. A new study finds that 1 in 15 Americans over the age of 40 detect strange odors like burning hair or rotting food when nothing is actually there.

Is it normal to randomly smell things that aren't there?

Smelling things that aren't there is called phantosmia. It can be unpleasant and affect how things taste. But it isn't usually serious and may go away by itself in a few weeks or months. See your GP if the strange smell doesn't go away in a few weeks.

40 related questions found

How do I get rid of phantom smell?

The phantom smell usually goes away on its own in a few weeks or months. Your doctor might suggest that you rinse your sinuses with a saltwater solution.

How do I get rid of the phantom smell after Covid?

If you got phantosmia after a viral infection like COVID-19 or a head injury, there's no treatment. But damaged nerves in your nose and nasal cavity do have the ability to grow back. It's possible for your sense of smell to partially or fully come back without treatment.

Can anxiety cause phantom smells?

Phantom Smell

Phantosmia, which is an olfactory hallucination, sometimes occurs with anxiety. It can cause you to smell something that isn't there, or rather, a neutral smell becomes unpleasant.

Why do I smell metal in my nose?

Some people can detect a metallic smell or other odors that can't be smelled by anyone else around them because the smells aren't real. This condition is called phantosmia, an olfactory hallucination that's often triggered by a sinus condition. Other causes include: allergies.

Do brain tumors make you smell things?

Could it be a brain tumor? Your olfactory complex, which is what allows your brain to process smells, is in your frontal and temporal lobe. If you have a tumor in the frontal or temporal lobe, it can distort your smell system and lead to you smelling things that aren't there.

Why do I smell glue in my house?

The hydrocarbon toluene (C7 H8) is a major component of many glue products. It is used as a solvent that keeps the glue in a liquid form and then evaporates as the glue dries and releases its sweet-smelling fumes into the air.

Does phantosmia go away?

Phantosmia usually goes away on its own, though this can sometimes be gradual and occur over several years. When caused by an illness (e.g., sinusitis), it should go away when the illness resolves.

Why do I smell poop in my nose?

If you have, you may have experienced phantosmia—the medical name for a smell hallucination. Phantosmia odors are often foul; some people smell feces or sewage, others describe smelling smoke or chemicals. These episodes can be sparked by a loud noise or change in the flow of air entering your nostrils.

How do you get rid of phantom smell naturally?

Regardless of the underlying cause of phantosmia, there are a few things you can do for relief. These include: rinsing your nasal passages with a saline solution (for example, with a neti pot) using oxymetazoline spray to reduce nasal congestion.

Can high blood pressure cause phantom smells?

Adults with diagnosed, but controlled, high blood pressure reported phantom odors more frequently than those without high blood pressure. We observed a threefold greater odds of phantom odor perception among adults aged 60 years and older with diabetes, but only among those who use both insulin and oral medications.

Can I lose my sense of smell after Covid?

Millions of people who have contracted COVID-19 have experienced a loss of smell and taste. “Some of these people have severe loss, meaning they're not able to smell or taste anything at all,” says Omar Danoun, M.D., a neurologist at Henry Ford Health System.

Can you have smell hallucinations?

An olfactory hallucination (phantosmia) makes you detect smells that aren't really present in your environment. The odors detected in phantosmia vary from person to person and may be foul or pleasant. They can occur in one or both nostrils. The phantom smell may seem to always be present or it may come and go.

Can your sense of smell change after Covid?

After having coronavirus (COVID-19), you may still have a loss of, or change in, sense of smell or taste. It can take time for your sense of smell or taste to recover. You may find that foods smell or taste differently after having coronavirus. Food may taste bland, salty, sweet or metallic.

Can stress cause olfactory hallucinations?

Self-reported symptoms of anxiety and experience of stressful life events were significantly associated with olfactory hallucinations, suggesting that experiencing olfactory hallucinations may negatively affect functioning and may increase the likelihood of developing psychopathology.

Why do my boogers smell like pus?

Pus (Purulence) – Pus is sticky, thick, milky, yellow or green, and often smelly. This substance drains from your nose along with mucus and is often evidence of an infection. Pus contains a high concentration of white blood cells that the body has sent to fight infection, as well as dead cells and pathogen metabolites.

How long does sense of taste disappear with Covid?

For many patients, COVID-19 symptoms like loss of smell and taste improve within 4 weeks of the virus clearing the body. A recent study shows that in 75-80% of cases, senses are restored after 2 months, with 95% of patients regaining senses of taste and smell after 6 months.

Is phantosmia a side effect of Covid?

As described in the literature, phantosmia can persist for years. Olfactory dysfunction is one of the preliminary symptoms of COVID-19 disease, and it can occur as hyposmia, anosmia, or and sudden loss of smell [2].

What is the weird smell in my room?

Dust — Dust is made up of all kinds of gross things: dead skin, pollen, pet hair and dander, insects, insect droppings, and dirt. And that's just the start. Not only does dust make your room look and feel dirty, it also affects the quality of your air and can cause a musty smell.

What does carbon monoxide smell like in house?

No, carbon monoxide has no smell. Carbon monoxide is an odorless, colorless gas that's a byproduct of combustion. As a homeowner, this means it can leak from your gas furnace, stove, dryer, and water heater as well as wood stove/fireplace.

Why does my house smell at night?

The smell can come from loose or frayed wires or cords, overloaded circuits, faulty outlets, incorrectly sized breakers or fuses, or overheated electrical shielding or insulation. If not addressed quickly and properly, any of these problems could result in a house fire.