What is the Difference Between Parosmia and Anosmia
The key difference between parosmia and anosmia is that parosmia is the change in the normal perception of odours while anosmia is the complete inability to detect odours.
People who normally undergo smell disorders experience either complete loss of smell or changes in the way they perceive odours. Smell disorders have many causes, including upper respiratory tract infection, injury to the head, polyps in the nasal cavities, sinus infections, hormones disturbances, dental problems, exposure to certain chemicals like insecticides and solvents, some medicines, and radiation.