Anosmia: Causes, Complications, and Treatment


Anosmia is the partial or total loss of the sense of smell. This loss might be short-lived or long-term. Typical conditions that irritate the nose’s lining, such as allergic reactions or a cold, can lead to short-lived anosmia.

Extra serious conditions that affect the brain or nerves, such as brain growths or head injury, can create permanent loss of smell. Old age in some cases creates anosmia.

Anosmia usually isn’t serious, however it can have a profound effect on an individual’s lifestyle.

People with anosmia might not be able to totally taste foods and may dislike consuming. This can result in weight loss or malnutrition. Anosmia can additionally lead to anxiety due to the fact that it may harm one’s capability to smell or taste enjoyable foods.

What Causes Anosmia?

Anosmia is often caused by a swelling or blockage in the nose that protects against odors from succeeding of the nose. Anosmia is in some cases brought on by a problem with the system that sends signals from the nose to the brain.

Below are the primary root causes of anosmia:

Irritation to the mucous membranes lining the nose

This can result from:

  • sinus infections
  • common colds
  • smoking
  • the influenza, or flu
  • allergies (hay fever).
  • persistent blockage unrelated to allergies (nonallergic rhinitis).

A cold is the most typical cause of partial and temporary loss of smell. In these instances, the anosmia will certainly vanish on its own.

Blockage of the Nasal Passages

Loss of smell can take place if something is physically obstructing the passage of air into the nose. This may consist of:

  • lumps.
  • nasal polyps.
  • bone defects inside the nose or a nasal septum.

Brain or Nerve Damage

There are receptors inside the nose that send out info through nerves to the brain. Anosmia can happen if any kind of part of this pathway is damaged. There are numerous conditions that can create this damage, including:

  • old age.
  • Alzheimer’s disease.
  • brain lumps.
  • Huntington’s disease.
  • hormonal problems.
  • underactive thyroid.
  • medications, consisting of some antibiotics and high blood pressure medications.
  • multiple sclerosis.
  • Parkinson’s disease.
  • schizophrenia.
  • epilepsy.
  • diabetes.
  • exposure to chemicals that shed the inside of your nose.
  • brain or head injury.
  • brain surgery.
  • malnutrition and vitamin deficiencies.
  • radiation therapy.
  • long-term alcoholism.
  • stroke.

In rare situations, people are born without a sense of smell because of a hereditary condition. This is called genetic anosmia.

Information verified by the team.

How is Anosmia Diagnosed?

The loss of smell is tough to measure. Your doctor might ask you some questions about your present symptoms, examine your nose, execute a complete physical examination, and inquire about your health and wellness background.

They might ask questions concerning when the issue began, if all or some types of odors are impacted, and whether you can taste food. Depending upon your answers, your doctor might likewise execute one or more of the complying with tests:.

  • CT scans, which use X-rays to create a thorough image of the brain.
  • MRI scans, which makes use of radio waves and magnets to check out the brain.
  • X-ray of the skull.
  • nasal endoscopy to look inside your nose.

What are the Complications of Anosmia?

People with anosmia might dislike food and consuming, leading to malnutrition and weight loss.

People with anosmia need to ensure to have functioning smoke detector in their residences in any way times. They need to also beware with food storage space and making use of gas since they might have problem discovering spoiled foods and gas leaks.

Recommended precautions consist of:

  • properly identifying foods with expiry dates.
  • reading tags on chemicals like kitchen cleaners and insecticides.
  • using electrical home appliances.

How is Anosmia Treated?

Treatment relies on the cause. If the loss of smell accompanies a cold, allergic reaction, or sinus infection, it normally will improve on its own in a few days. You should consult your doctor if the anosmia does not clear up as soon as the chilly or allergy symptoms have actually subsided.

Treatments that may assist resolve anosmia brought on by nasal irritation include:

  • decongestants.
  • antihistamines.
  • steroid nasal sprays.
  • antibiotics, for bacterial infections.
  • reducing exposure to nasal toxic irritants and irritants.
  • cessation of smoking.

Loss of smell brought on by nasal blockage can be dealt with by removing whatever is obstructing your nasal passage. This removal might entail a treatment to remove nasal polyps, correct the nasal septum, or clear out the sinuses.

Older people are more prone to shedding their sense of smell completely.

There is no treatment currently offered for people with congenital anosmia.

People with a partial loss of their feeling of smell can add concentrated flavoring representatives to food to boost their enjoyment.

Ali Gadimov
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