
Loss Of Smell (Anosmia)
Loss of smell, or anosmia, is a common non-motor symptom in Parkinson’s disease (PD). It can occur years before motor symptoms develop and is thought to be caused by the degeneration of nerve cells in the olfactory system. Research has shown that loss of smell may be a useful early marker for PD and that it is associated with more severe motor symptoms and a greater cognitive decline. While there is currently no cure for anosmia in PD, studies have explored the potential use of olfactory training and other treatments to help manage this symptom. Additionally, the research suggests that the use of olfactory testing can help clinicians diagnose PD and monitor the progression of the disease.