Anosmia (say "ay-NAWZ-mee-uh") is the loss of the sense of smell. It can be a problem by itself or a symptom of another health problem. It can last a short time, such as when you have a stuffy nose from a cold, or it can be permanent.
Some people have a reduced sense of smell. This is called hyposmia (say "hy-PAWZ-mee-uh"). These people may be able smell some scents but not others. Or scents may smell different than they used to.
Being around tobacco smoke is bad for you, even if it's someone else's smoke.
When someone smokes a cigarette, most of the smoke doesn't go into their lungs. It goes into the air, where anyone nearby can breathe it.
Smoking is banned in many public places. But many people are still exposed to secondhand smoke, especially children who live with parents who smoke. Even people who try to be careful about where they light up may not protect those around them.
The sense of smell is closely tied to the sense of taste. If you can’t smell the aroma of food, you will likely have trouble tasting food. This could lead to not eating enough and losing weight. You also may not get the nutrients you need.
Anosmia can affect your mood. It can make you feel sad or depressed, because the aromas of food, flowers, and other things add to the joy of life.
Lack of a sense of smell also can be dangerous. For example, you wouldn't be able to smell a gas leak or smoke from a fire.
What causes anosmia?
Many people lose some of their sense of smell or taste as they get older. But lack of the sense of smell is usually caused by an injury or a health problem. Anosmia can be short-term and get better when the health problem goes away. But sometimes it's permanent.