Hyposmia is a medical condition characterized by a reduced ability to smell. It can result from various factors, including nasal congestion, allergies, or neurological disorders. People with hyposmia may find it difficult to detect certain odors, which can affect their taste and overall quality of life. This condition can be temporary or permanent, depending on its underlying cause. In some cases, treating the root issue, such as sinusitis or allergies, can improve the sense of smell. However, if hyposmia is linked to more serious conditions like Parkinson's disease or Alzheimer's disease, it may require ongoing management.