How does Alzheimer's disease affect the sense of smell?

Question

Hi doctor,

I have noticed that my elderly relative with Alzheimer's disease has started picking their nose frequently. Could this behavior be related to their condition? Can you explain how Alzheimer's disease might affect someone's sense of smell and behavior, and what measures can be taken to address this behavior while considering their dementia diagnosis?

Thank you.

Answer 1

Hi,

I am glad you chose icliniq for your medical-related queries.

I can understand your concern.

Alzheimer's disease (AD) can significantly affect smell, and it is a known phenomenon in this disease. Even years before memory problems occur, the ability to smell shows dysfunction. This is because the olfactory nerve is not common, but rather a section of the brain, and brain atrophy also affects this section. Moreover, parallel to atrophy, many mature behavioral manners regress. Therefore, the behavior of nose-picking mentioned may be due to this issue. Unfortunately, there is no specific medication to address this problem.

I hope you are satisfied with my answer. For further queries, you can consult me at icliniq.

Thank you.