Do you sometimes feel like you can't smell as well as you used to? Maybe the delicious smell of food coming from the kitchen, the smell of beautiful flowers, or the smell of the earth after the rain... When these things don't feel as strong as they used to, it makes you a little nervous, doesn't it? Today, we'll talk about this reduced sense of smell, which is medically known as hyposmia. This may be something that affects you or someone you know. So let's take a look at this in more detail.
What exactly is hyposmia?
Simply put, hyposmia is a loss of your sense of smell. It's like a radio that used to be very loud and the volume gradually decreases. You have difficulty identifying smells and distinguishing them. This is different from simply losing your sense of smell.
Now, let's see, the complete loss of the sense of smell is called `(Anosmia)`. That means not being able to smell anything. Also, sometimes you have distorted senses of smell, meaning you smell a good smell in a bad way, like a burnt smell, or a bad smell in a different way, that's called `(Parosmia)`. So hyposmia is the opposite of both of these, a weakened sense of smell. That means you can smell, but not as strongly and clearly as before. Do you understand?
How common is this condition?
In fact, people all over the world have some kind of impairment in their sense of smell. According to statistics in the United States, about 12% of the population has some kind of problem with their sense of smell. Of these, hyposmia, a condition that reduces the sense of smell, affects about 3%.
But here's something to keep in mind: the risk of developing a loss of sense of smell increases with age. That is, as we age, our sense of smell becomes less efficient, and our sense of smell may also become less efficient. It can be normal, or it can be a symptom of a medical condition.
What are the symptoms of this?
Symptoms of hyposmia can appear suddenly, or they can develop gradually over time. You may experience things like:
- Normal smells, such as the smell of coffee in the morning, flowers, and soap, are not as noticeable as they used to be.
- Difficulty recognizing certain smells. For example, not being able to properly recognize the smell of your favorite food or a particular perfume.
- Inability to distinguish between smells. For example, not being able to tell the difference between the smell of lemon and the smell of orange.
Imagine, if you couldn't really smell your favorite flower garden, or the delicious curry your mom was cooking... what if you couldn't smell them properly? That would take away a little bit of joy from life, wouldn't it?
Another important thing is that 80% of our sense of taste is influenced by our sense of smell. This is something that many people don't know. Therefore, when you have a loss of smell, you may feel that the taste of food has changed. It may not taste as good as it should, or it may even taste like it's bland. We call this `(Dysgeusia)`. So if you feel that not only the smell but also the taste of food has decreased, that may also be related to this.
Why is this happening to us? What are the reasons?
Hyposmia can be caused by a variety of factors. Some health conditions, environmental factors, or problems with the nervous system can contribute to it. In most cases, the main cause is inflammation or swelling inside your nose. This problem occurs when odor molecules cannot reach the smell cells inside your nose. It can also be caused by neurological problems in the parts of the brain that are responsible for smell.
What are the health reasons?
These health conditions can contribute to hyposmia:
- Allergies: People who get colds frequently or are allergic to dust or pollen may develop swelling inside the nose and a reduced sense of smell.
- Bacterial infections: Infections of the nose and sinus cavities, such as rhinosinusitis (also called sinusitis), nasal vestibulitis, or chronic sinus infections. These infections can also cause the inside of the nose to swell and fill with mucus, blocking the passage for smell.
- Viral infections: The COVID-19 virus is a prime example of this. Also, things like the flu and the common cold can temporarily reduce your sense of smell.
- Nasal polyps: These are small, painless growths of soft tissue that can form inside the nose or sinus cavities. When they grow large, they can block the nasal passages, making it difficult for odorants to reach the olfactory cells in the nose.
- Deviated septum: The wall of cartilage and bone in the middle of the nose is deviated to one side. This can cause breathing difficulties and problems with the sense of smell in some people.
- Hormonal imbalances: Changes in hormones in the body, especially during pregnancy, can sometimes affect the sense of smell.
- Type 1 Diabetes Mellitus : People with diabetes can have nerve damage, which can affect their sense of smell.
- Malnutrition: Inadequate intake of certain nutrients, such as zinc, can also cause a loss of sense of smell.
- Dental problems: Things like severe tooth decay and gum disease can also cause bad breath, and may even slightly affect your sense of smell.
Do environmental factors also affect it?
Yes, some environmental factors can also be a cause. Some things in our daily environment can affect our sense of smell:
- Smoking: This is something that many people know. The chemicals in cigarettes damage the smell cells in the nose.
- Some medications: Some antibiotics, antihistamines, blood pressure medications, and antidepressants can cause a loss of smell as a side effect.
- Long-term exposure to certain chemicals: People who work in factories, paint shops, etc., may experience a loss of sense of smell due to exposure to heavy metals like lead and solvents.
- Head and neck radiation therapy: Radiation therapy for things like cancer can damage cells in that area and cause a loss of smell.
- Sniffing drugs like cocaine: These drugs damage the delicate membranes inside the nose, which can lead to loss of the sense of smell.
How do nervous system problems affect?
The sense of smell is a complex process. Once odor particles enter the nose, they need to be transmitted to the brain. So, if there is a problem with the nerve pathways leading to the brain or the part of the brain that detects odors, the sense of smell can be reduced. Some neurological diseases, such as these, are also associated with hyposmia:
- Parkinson's disease: A loss of sense of smell may be an early symptom of this disease.
- Alzheimer's disease: This disease can also affect the sense of smell because it damages brain cells.
- Multiple sclerosis (MS): This is also a disease that affects the nervous system.
The relationship between hyposmia and COVID-19
Did you know that hyposmia is one of the first symptoms that many people with COVID-19 experience? In many cases, it is the first warning sign. Some people lose their sense of smell before they develop a fever or cough.
However, it is not always the case that you have a loss of smell because of `(COVID-19)`. It can also be due to other reasons. However, if you suddenly notice a decrease in your sense of smell, especially during this pandemic, it is very important to seek medical advice immediately. Then, if necessary, you can get tested for `(COVID-19)`.
What problems can this cause?
Hyposmia is not just a loss of smell. It can have a major impact on your quality of life. Imagine how frustrating it would be to not be able to enjoy the taste of food. It can also affect social interactions. For example, if you can't smell something like your own body odor, it can be embarrassing for others.
In particular, the most dangerous thing is not being able to recognize the smells that alert you to danger. Think about it:
- If there is a fire or smoke , it can be a big danger if you don't notice the smell of something burning in the kitchen when it's on the stove.
- Something like a gas leak . How dangerous is it if you can't smell a gas leak from a gas cylinder?
- Expired or spoiled foods . For example, if you can't smell a fish fillet or a packet of milk and can't tell if it's spoiled, you could get sick from eating them.
- Toxic chemicals . Some cleaning fluids and pesticides have a strong odor. If you don't recognize that smell, it's hard to be careful with them.
Therefore, the sense of smell is a very important sense for our safety.
How do doctors figure this out exactly?
Usually when you go to see a doctor, they will first ask you questions. How long have you had this problem, are there any other symptoms, what medications are you taking, etc. Then, they will look at whether there are neurological causes for this, such as COVID-19.
Then, you will probably be referred to an ear, nose, and throat specialist (ENT specialist). There, he or she will examine your sinuses and the inside of your nose to check for infections, polyps, and swelling in the nasal passages. The following tests may also be done:
- Nasal endoscopy: This involves inserting a small, thin tube with a camera attached to the end into the nose to examine the inside of the nose. This allows for a clear view of the inside of the nose. It is a little uncomfortable, but not painful.
- Imaging tests: These include CT (computed tomography) scans and MRI (magnetic resonance imaging) scans. These can produce detailed images of the structures of the nose, sinuses, and brain.
- Sense of smell tests: These are special tests that test your ability to identify scents, such as small bottles of different scents. This can help assess your sense of smell.
What are the treatments for this?
The good news is that hyposmia can be treated. But the treatment depends entirely on finding and treating the underlying cause. That is, the treatment will vary depending on the cause. The main things to do are:
- Lifestyle changes
- Sense of smell training: This is a relatively new method. In this, people are exposed to various strong scents (e.g. rose, lemon, clove, eucalyptus) for a few seconds every day, about twice a day, to try to rebuild the memory of the scent. This has had good results for some people.
- Medication
- Maybe surgery.
Because everyone's situation is different, treatments may vary. If your loss of smell is due to neurological causes or COVID-19, it's best to talk to your doctor about what treatments are right for you.
Lifestyle changes
For people who develop hyposmia due to environmental factors, symptoms may return once the cause is removed. For example, if a smoker stops smoking, the lost sense of smell may gradually return. However, sometimes long-term exposure to chemicals at work can cause permanent loss of smell. Therefore, avoiding such things can help prevent further loss of smell.
Medicines
Hyposmia symptoms can also be reduced by prescribing medications to treat the underlying cause. For example, if your loss of smell is due to an allergy, your doctor may prescribe antihistamines or nasal sprays to reduce swelling in your nose and restore your sense of smell. Or, if it's due to a sinus infection, antibiotics may be prescribed (if it's a bacterial infection).
Surgery
In some severe cases, surgery may be required to treat hyposmia. However, the type of surgery will depend on the underlying condition. For example, if you have a deviated septum, a surgery called septoplasty can straighten it. If you have nasal polyps, they may need to be surgically removed. These surgeries often restore your sense of smell.
How long will this situation last?
It depends entirely on what caused it. Some people may only have a loss of smell for a few days. For example, a common cold can cause a loss of smell for a few days and then it goes back to normal. Others, especially after an infection like COVID-19, may have symptoms for months, even years. Unfortunately, in some cases, hyposmia can be permanent, especially if it is caused by something like nerve damage.
Therefore, if you want to reduce these symptoms as soon as possible, see a doctor for advice. Once he finds the cause, he will prescribe the right treatment for you.
Can we prevent this?
In fact, many of the causes of hyposmia are beyond our control. For example, aging and certain genetic conditions. Therefore, it is not always possible to prevent it. However, there are things we can do to reduce our risk:
- If you work in an environment with harmful chemicals, be sure to wear the proper protective gear (face masks, especially respirators).
- Manage any other health conditions you already have (e.g. diabetes, high blood pressure). Follow your doctor's instructions.
- Maintain good oral health. Brush your teeth thoroughly every day and take care of your gums.
- Eat a balanced diet, especially foods rich in nutrients like zinc (grains, meat, fish, nuts).
- If you smoke, try to quit. This is good for your overall health.
- Avoid snorting drugs like cocaine and opioids. These are not only bad for your sense of smell, but they are also very harmful to your entire body.
- Protect yourself from head injuries. Wear a helmet when playing sports.
When should I see a doctor?
Usually, a loss of smell caused by things like allergies, a cold, or a minor infection will get better on its own within a few days. However, if you have symptoms of hyposmia for more than two weeks, be sure to tell a doctor. Don't just assume it's something that's going on.
Also, if your sense of smell suddenly and severely decreases for no apparent reason, seek medical attention immediately , as it could be a sign of a more serious health problem, perhaps a nervous system problem.
This is very important, because sometimes what we think is a minor issue can be a serious condition. The sooner we find the cause, the easier it is to treat.
What questions should I ask the doctor?
It's normal to feel a little scared when you experience changes in your sense of smell. If you have hyposmia, you can ask your doctor these questions. Don't be shy about asking them, because they're about your health:
- Why did my sense of smell change?
- What is the underlying cause of this?
- What kind of tests do you recommend?
- Is this caused by another health condition? (e.g., a sinus problem or something neurological?)
- What treatments can I have?
- How long will it take for this condition to heal?
- Is this likely to become a permanent situation?
- What changes do I need to make in my lifestyle?
- What should I do to prevent something like this from happening again?
Final Take-Home Message
Our sense of smell is one of the many ways we connect with the world around us. It brings us pleasure, like the scent of flowers, the smell of freshly baked bread, the scent of the sea breeze. It also protects us from harm.
Hyposmia can have a negative impact on your life. The only way to treat it is to find the underlying cause or condition and address it.
If you are also experiencing a loss of smell, please talk to a doctor. He or she will be able to determine the cause and recommend appropriate treatment to relieve your symptoms. Do not be embarrassed or ignore these things. Your health is the most important thing! Do not be afraid to seek medical advice, because with prompt treatment, these conditions can often be cured.
` Hyposmia, Hyposmia, decreased sense of smell, loss of smell, nasal diseases, ENT, COVID-19 smell
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