Abnormal sense of smell

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Rohini R

Medically Reviewed By:

Rohini R, MD

Ear, nose, throat (ENT)

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People with these symptoms also use Ubie's symptom checker to find possible causes

  • Can't smell as well as usual

  • Disorder of sense of smell

  • Olfactory disorder

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Content updated on May 23, 2022


Abnormal sense of smell can be a partial or complete loss of sense of smell.

When to See a Doctor

Seek professional care if you experience any of the following symptoms

  • Numbness / sensory disorder

  • Visual field defect

  • Change in personality

  • Head injury

  • Fine tremor of the fingers

  • Fever

  • Altered mental status (delirium)

  • Involuntary movements

  • Impossible to walk normally

  • Muscle weakness in the limbs

  • Blurring of vision

  • Headache

Possible Causes

  • Sinusitis

    Infection of the sinuses, which are cavities around the nose. The infection can be acute (lasting about a week) or chronic (lasting for more than three months). It can be caused by viruses or bacteria.

  • Dissociative disorder

  • Pregnancy

    The first sign of pregnancy is usually a missed period. Morning sickness (nausea/vomiting) may accompany it. Importantly, pregnancies in the early stage can also have bleeding - this may mimic a normal period.

  • Subcortical hemorrhage
  • Parkinson disease (PD)
  • Refsum syndrome

  • Wolfram syndrome

Related Serious Diseases

  • Cerebrospinal fluid rhinorrhea

    Cerebrospinal fluid (CSF) rhinorrhea is a condition where the fluid that surrounds the brain (cerebrospinal fluid) leaks into the nose and sinuses. Most common causes include trauma, surgery, birth defects and increased pressure inside the skull and brain tissue.

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you have any change in your sense of smell?

  • Do you have a fever?

  • Do you have a sore throat?

  • Do you have a cough?

  • Do you have phlegm?

Other Related Symptoms

Symptoms from the same body system / part

Rohini R

Medically Reviewed By:

Rohini R, MD

Ear, nose, throat (ENT)

in our Medical Expert Team

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Shohei Harase, MD


Kameda Medical Center, Japan

Sanshiro Kato

Sanshiro Kato, MD

Emergency department

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Yu Shirai

Yu Shirai, MD


Yotsuya Yui Clinic, Japan

Yoshinori Abe

Yoshinori Abe, MD

Internal medicine

Co-founder of Ubie, Inc.

Rohini R

Rohini R, MD

Ear, nose, throat (ENT)

Bayshore Health Centre, India

Seiji Kanazawa

Seiji Kanazawa, MD, PHD

Obstetrics and gynecology (OBGYN)

National Center for Child Health and Development, Japan

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