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However, other factors can contribute to loss of taste and smell, including: Nasal and sinus problems, such as allergies, sinusitis or nasal polyps. Certain medications, including beta blockers and angiotensin-converting enzyme (ACE) inhibitors. Dental problems. Cigarette smoking. Head or ...
Taste and smell disorders send hundreds of thousands of Americans to the doctor each year. Fortunately, for most people, anosmia is a temporary nuisance caused by a severely stuffy nose from a cold.
Causes of Loss of Smell and Taste. Nerve cells in the nose, mouth and throat transmit messages to the brain to smell or taste. The olfactory cells are found in tissue high up in the nose and are stimulated by fragrances. The gustatory cells, found in the taste buds of the mouth and throat, react to food and drink to allow us to taste them.
Causes of Loss of Sense of Smell & Taste Olfactory Nerve or Brain Damage. Degenerative diseases, head injury and surgery all can lead... Olfactory Epithelium Damage. Snorting illegal drugs, such as cocaine and amphetamine,... Intranasal Obstruction. Obstruction of the nose can lead to loss of ...
Other causes of smell and taste loss include: Damage to the olfactory nerves in the nose; Blocked nasal cavity; Infection; Areas of the Brain That Control Smell and Taste. The chances of losing your sense of taste and smell after brain injury could be influenced by the area of the brain that was affected. There are three primary areas of the brain that control your sense of smell:
In fact, loss of taste and smell go hand-in-hand. When one sense is inhibited, the other is affected. Common causes of these symptoms include ordinary illnesses such as a cold, nasal passage congestion, nasal obstruction, breathing problems, allergies and changes in taste bud receptors.
There are many different causes of smell and taste problems. The most common causes of temporary loss are colds, flu and sinus problems. You can also be born with a smell disorder, usually because of a faulty gene.
Patients with compromised smell and taste senses can experience family discord and expose themselves and others to danger because they cannot detect spoiled food, leaking gas, or smoke.
Anosmia is the inability to perceive odor or a lack of functioning olfaction—the loss of the sense of smell. Anosmia may be temporary, but some forms such as those from an accident can be permanent. Anosmia is due to a number of factors, including an inflammation of the nasal mucosa, blockage of nasal passages or a destruction of one temporal lobe. Inflammation is due to chronic mucosa changes in the paranasal sinus lining and the middle and superior turbinates. When anosmia is caused by inflammatory changes in the nasal passageways, it is treated simply by reducing inflammation. It can be caused by chronic meningitis and neurosyphilis that would increase intracranial pressure over a long period of time, and in some cases by ciliopathy including ciliopathy due to primary ciliary dyskinesia (Kartagener syndrome, Afzelius' syndrome or Siewert's syndrome). Many patients may experience unilateral anosmia, often as a result of minor head trauma. This type of anosmia is normally only detected if both of the nostrils are tested separately.
Dysosmia is a disorder described as any qualitative alteration or distortion of the perception of smell. Qualitative alterations differ from quantitative alterations, which include anosmia and hyposmia. Dysosmia can be classified as either parosmia (also called troposmia) or phantosmia. Parosmia refers to a distortion in the perception of an odorant. Odorants smell different from what one remembers. Phantosmia refers to the perception of an odor when there's no actual odorant present. The cause of dysosmia still remains a theory. It is typically considered a neurological disorder and clinical associations with the disorder have been made. Most cases are described as idiopathic and the main antecedents related to parosmia are URTIs, head trauma, and nasal and paranasal sinus disease. Dysosmia tends to go away on its own but there are options for treatment for patients that want immediate relief.
Ageusia ( ) is the loss of taste functions of the tongue, particularly the inability to detect sweetness, sourness, bitterness, saltiness, and umami (meaning "pleasant/savory taste"). It is sometimes confused with anosmia – a loss of the sense of smell. Because the tongue can only indicate texture and differentiate between sweet, sour, bitter, salty, and umami, most of what is perceived as the sense of taste is actually derived from smell. True ageusia is relatively rare compared to hypogeusia – a partial loss of taste – and dysgeusia – a distortion or alteration of taste.