What is CBC Test?

Spread the love

Complete blood count or CBC or just “blood test” is an easy and very common test that tests blood for some disorders affecting your health.

What is Complete Blood Count (CBC)Test?

What is CBC Test?

CBC determines whether there is any increase or decrease in the counting of your blood cells. Normal counting may vary depending on your age and your gender. The CBC report from the laboratory will tell you a general count for your age and gender.
CBC anemia can help detect many health problems from common infections to cancer.
Measuring the change in the level of your blood cells, your doctor can detect your overall health and disorders. This test measures three main types of blood cells –


Red blood cells deliver oxygen to your body and remove carbon dioxide. CBC measures two components of your red blood cells –

  • Hemoglobin: Oxygen-carrying proteins
  • Hematocrit: Percent of red blood cells in your blood

Decreased hemoglobin and hematocrit often is the symptom of anemia (anemia is caused by iron deficiency in the blood).


White blood cells help your body fight infection. CBC measures the number and type of white blood cells in your body. An abnormal increase or decrease in the number or type of white blood cells may be an indicator of infection, inflammation or cancer.


Platelets help control your blood clots and bleeding. When bleeding stops bleeding, it means that platelets are doing their job. Any change in the level of platelets can present you with the risk of excess bleeding and may be a sign of a serious medical condition.

Purpose of CBC

Your doctor may ask for a CBC test for regular checkups. Or if you have symptoms that can not be detected without testing, such as bleeding or injury due to which you do not know.
CBC test can help your doctor for the following:

Full health check

CBC is useful for checking your health. It gives your doctor a good picture of your overall health. The doctor from CBC can also predict the risk of having some illnesses.

Diagnosis of any illness

Your doctor may also ask for a CBC test to diagnose any illness or health problem. Apart from this, if you have any symptoms that are not known, such as weakness, fatigue, fever, redness, swelling, injury or bleeding, then CBC is also useful to know more about them.

Monitoring any ongoing illness

If you have a health problem, your doctor can ask for a CBC test to keep an eye on him regularly. This is especially applicable when you have a disorder that affects the number of blood cells.


Today, in this article, we have told you about the CBC test. If you want to know more about this, you can also ask by commenting in the comment box below.

Leave a Reply

Your email address will not be published. Required fields are marked *