This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Congenital anosmia is a condition in which people are born with a lifelong inability to smell. It may occur as an isolated abnormality (no additional symptoms) or be associated with a specific genetic disorder (such as Kallmann syndrome or congenital insensitivity to pain). Isolated congenital anosmia is usually sporadic, although some familial cases have been reported. In most cases of isolated congenital anosmia, the genetic cause in unknown. Unfortunately, there is currently no cure or treatment for congenital anosmia.
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