1 doctor weighed in:

What can cause a person to lose all sense of smell?

1 doctor weighed in
Dr. Pablo Arango
ENT - Head & Neck Surgery

In brief: 3 main reasons.

1.Head trauma: a blow to the front off back of the head causes the brain to bounce in skull.
Smell nerve fibers can be ripped by this sudden action 2.Nerve damage: a seemingly minor cold sometimes causes enough inflammation that nerve is damaged.Some drugs can also cause this 3. Obstruction: something can physically block smell particles from reaching the smell area. Polyps or rare tumors.

In brief: 3 main reasons.

1.Head trauma: a blow to the front off back of the head causes the brain to bounce in skull.
Smell nerve fibers can be ripped by this sudden action 2.Nerve damage: a seemingly minor cold sometimes causes enough inflammation that nerve is damaged.Some drugs can also cause this 3. Obstruction: something can physically block smell particles from reaching the smell area. Polyps or rare tumors.
Dr. Pablo Arango
Dr. Pablo Arango
Thank