Have you ever wondered if there is a small army inside our bodies, like a group of people who protect us from invisible threats? Yes, it is true. This army protects us from various diseases and germs that enter our bodies. Today we are going to talk about these small, but very important, guards of our bodies. They are white blood cells, some also call them white blood cells.
What are White Blood Cells?
Simply put, white blood cells, also known as ``Leukocytes'' by doctors, are like the main security guards in our body. Just like there is an army to protect a country, there is a special force to protect this wonderful country called our body. These white blood cells are a major part of that force. They are a very important and indispensable part of our immune system . These cells are constantly moving through our blood vessels and tissues, as if on patrol. These people are always on the lookout for any injury, infection, or anything harmful to the body.
What happens to our bodies with these white blood cells?
The main function of these white blood cells is to protect our body from infections . Imagine that a bacteria or a virus has entered your body. It's like an enemy has invaded your country. Then, these white blood cells act like soldiers in an army.
First, some white blood cells find the invader. Then, like commanders, they send a message to other white blood cells, saying, "There's a problem here, come quickly!" Then, the whole army of white blood cells gathers at the site of the infection. They come and fight to destroy the invader. In this fight, they produce a special type of protein, called an ``Antibody''. This ``Antibody'' goes and attaches itself to the invader, paralyzing it and destroying it. Isn't it a wonderful mechanism?
Where are white blood cells located?
White blood cells are mainly found in our circulatory system , that is, in the blood. However, they are not only inside the blood vessels. When necessary, they can also penetrate the walls of the blood vessels and enter the tissues of the body. Like detectives, they find an infection somewhere and go there to do their job.
How do white blood cells look?
Although they are called "white" blood cells, they are actually colorless cells. However, when viewed under a microscope, they appear a very light purple-pink color when stained with special dyes. These are very small cells that are often round in shape and have a clear central membrane, or nucleus, in the middle.
How big are these?
White blood cells are very small things that cannot be seen with the naked eye . They can only be seen with a microscope. They are that small.
How many white blood cells do we have in our body?
White blood cells make up about 1% of our total blood volume. Red blood cells are the most abundant in our blood. But even this 1%, the service they provide to our defense is priceless. You would be surprised to learn that our bodies produce about 100 billion white blood cells per day!
How are white blood cells formed?
White blood cells are made in the soft tissue inside our bones, called the bone marrow . Isn't it a wonderful place? A special type of cell in this bone marrow, we call stem cells, is what undergoes various changes and becomes these white blood cells.
Also, two types of white blood cells, called lymphocytes, develop in the thymus gland in the upper chest. Some types of lymphocytes, such as T cells, develop in the lymph nodes and spleen.
What types of white blood cells are there?
Just as there are different types of soldiers in our security forces, white blood cells are divided into five main types. Each type has a specific function.
Imagine, this is like an army with infantry, artillery, and special forces. Everyone works together to win the battle.
Here are those types:
- Neutrophils: These are the ones who help kill invaders like bacteria and fungi that enter our bodies, and also remove waste products from the outside world. Like soldiers on the front lines.
- Lymphocytes: This group includes T cells, B cells, and natural killer cells. They are the ones that primarily protect us from viral infections and make the proteins called antibodies mentioned earlier.
- Eosinophils: These help to identify and destroy parasites (e.g. worms), destroy cancer cells, and also work together with Basophils in the event of allergies.
- Basophils: These are the ones that cause reactions like coughing, sneezing, and runny nose when you have an allergy. It's actually the body's defense mechanism.
- Monocytes: These are like the cleaning crew. When an infection occurs, they help clean the area by removing damaged and dead cells.
What are the common problems associated with white blood cells?
Sometimes our white blood cell count can be low or high. Both can be a problem.
- If your white blood cell count decreases (Leukopenia): If your white blood cell count decreases, which is called ``Leukopenia,'' you are more likely to get infections more often. This is because your body's defenses are weakened.
- If the number of white blood cells increases (Leukocytosis): Also, an excessive increase in the number of white blood cells, that is, a condition called ``Leukocytosis``, is not good. It means that there may be an infection somewhere in the body, or some disease condition like ``Leukemia``, ``Lymphoma``, or there may be some problem with the immune system.
What are the symptoms of this condition?
Whether your white blood cell count is low or high, you may experience some common symptoms. But remember, having these symptoms doesn't necessarily mean you have a serious problem. The most important thing is to see a doctor and get checked out.
- Frequent fever, body aches, and feeling cold.
- When a wound occurs, it becomes red, swollen, oozes pus, or does not heal quickly.
- Frequent infections (e.g., throat infections, skin infections).
- A persistent cough or difficulty breathing.
What is the normal white blood cell count?
Normally, a healthy person's body produces about 100 billion white blood cells per day. When we do a blood test, we measure the number of white blood cells per microliter of blood. For a healthy adult, this number should be between 4,000 and 11,000 cells per microliter . This can vary slightly depending on factors such as age and gender.
What tests are done to check white blood cell count?
There are two main tests.
1. Complete Blood Count (CBC): This is the most commonly performed test. It can provide a lot of information about not only the white blood cells, but also the other cells in the blood, such as red blood cells and platelets, from a sample of your blood.
2. White blood cell scan: This is a special test. It is done to find an infection or abscess hidden somewhere in the soft tissues of the body. What is done here is, a little blood is taken from you, the white blood cells are separated from it, and a radioactive substance is added to them. Then, those white blood cells are put back into your body. Then, when you look at it with a special camera, the radioactive substance makes the infection clearly visible.
What are the causes of low white blood cell count?
We call a white blood cell count below 4,000 ``Leukopenia.`` This can be caused by several reasons.
- Bone marrow failure (e.g., conditions like aplastic anemia).
- Cancer cells invade the bone marrow (e.g. leukemia).
- Some medications, especially chemotherapy for cancer.
- Deficiency of certain vitamins, such as vitamin B12.
- Diseases that reduce immunity, such as HIV/AIDS.
What are the causes of increased white blood cell count?
A white blood cell count above 11,000 is called ``Leukocytosis.`` This can have several causes.
- Autoimmune disorders (e.g., lupus, rheumatoid arthritis).
- Viral infections (e.g. `(Mononucleosis)`).
- Bacterial infections (e.g., severe infections such as sepsis).
- Physical injury or extreme mental stress.
- Cancers such as leukemia or Hodgkin's disease.
- Allergies.
What are the treatments for white blood cell diseases?
Treatment options depend on the type of condition and how severe it is. Some treatments include:
- Providing vitamins (if there is a deficiency).
- Giving antibiotics (if it is a bacterial infection).
- Surgery for bone marrow transplant or repair (in some severe cases).
- Blood transfusion.
- Stem cell transplant.
How can I keep my white blood cells healthy?
There are several things we can do to take good care of these little guards in our bodies.
- Practicing good hygiene practices: Things like washing your hands frequently and eating clean can reduce the risk of infection.
- Taking vitamins that strengthen the immune system: Eat a balanced diet, and take vitamin supplements as directed by a doctor if necessary.
- Getting proper treatment for other medical conditions: Some diseases can affect white blood cells as a side effect. Therefore, it is important to get proper treatment for the underlying conditions.
Finally, things to remember
White blood cells are like the first line of defense in our body. Whether it's an injury or an illness, these are the first to come to the fight. Therefore, it's our responsibility to keep these cells healthy. You can keep your immune system strong by maintaining good hygiene, eating a balanced diet, and taking vitamins if necessary.
If you have frequent fevers, chills, frequent infections, a persistent cough, or difficulty breathing, be sure to see a doctor to check your white blood cell count. This can help you identify the condition before it becomes a major problem. Don't worry, there are good treatments for all of these!
` White blood cells, leukocytes, immunity, infections, blood tests, health, physical health
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