Causes of olfactory failure

summary

I don't know if you've ever tried to smell. Suddenly, you can't smell anything? I tried some time ago. My mother told me that it was caused by many factors. What is the cause of olfactory failure? Let's get to know.

Causes of olfactory failure

First of all, the most common cause of olfactory failure is a cold caused by upper respiratory tract infection. Inflammation damages the olfactory receptors, which can not play their due functions, and it is manifested as olfactory failure.

Secondly, some elderly people with central nervous diseases such as Alzheimer's disease may also have olfactory nerve atrophy, and then olfactory decline. One side or both sides can not smell, but also feel that there are chronic headache, mental disorders, this may be the skull base tumor compression olfactory nerve, need to pay special attention to.

Finally, intracranial fracture, contusion, and hematoma can damage olfactory nerve, which can be diagnosed by X-ray and CT. In addition, there are also some olfactory decline is not caused by disease, but by lack of nutrition. For example, lack of nicotinic acid, vitamin B12, iron, zinc can also cause sensory damage, resulting in a decline in smell.

matters needing attention

I would like to remind you that no matter what causes the olfactory failure, you should go to the hospital as soon as possible to find out the causes, so as to take corresponding treatment measures.