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Overview of High Red Blood Cell Count: Meaning, symptoms, causes, and treatment

TeamAckoDec 18, 2024

A high red blood cell (RBC) count can be an indication of various underlying health issues, ranging from dehydration to more serious conditions like heart or lung disease. While red blood cells are crucial for oxygen transport, having too many of them can cause the blood to thicken, leading to complications. In this article, we'll explore what a high RBC count means, its symptoms, potential causes, and treatment options.

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Contents

What is Considered a High Red Blood Cell Count?
Potential causes of High Red Blood Cell Count
Risk factors
Symptoms
How is Polycythemia (High Red Blood Cell Count) diagnosed?
Treatment options for High Blood Cell Count
- 1. Phlebotomy
- 2. Medications
Prevention of High Blood Cell Count
Which Cancer Results in Higher Red Blood Cell Counts?
If My Red Blood Cell Count Is High, Should I Be Concerned?
Frequently Asked Questions (FAQs)

What is Considered a High Red Blood Cell Count?

Generally, a red blood cell count is considered high if it exceeds 6.1 million for males, 5.4 million for women, and 5.5 million for children. Additional testing will help your doctor determine the cause of your elevated red blood cell count and the next step in your therapy.

Besides RBCs, individuals with PTM may have elevated haemoglobin or hematocrit. PTM is classified into two broad categories.

Primary PTM: It is caused by the bone marrow producing too many red blood cells as a result of a mutation or a biological component in the body.
Secondary PTM: It is caused by conditions such as smoking, high altitude, or genetic heart defects that restrict the amount of oxygen reaching cells in the body. Some patients with secondary PTM may have red blood cells that contain an abnormal form of haemoglobin that may not efficiently release oxygen.

Potential causes of High Red Blood Cell Count

The following medical disorders may cause an increase in red blood cells.

Heart failure that results in low blood oxygen levels
Genetic heart disease
Kidney tumours
Lung disease includes emphysema, COPD, and pulmonary fibrosis (scarring of lung tissue)
Hypoxia (low blood oxygen levels)
Carbon monoxide toxicity (typically associated with smoking)
Sleep apnea

A HRBCC can be caused by a variety of lifestyle factors, including the following.

Cigarette smoking
Using anabolic steroids

Risk factors

Certain people may be more vulnerable to Primary PTM than others. Most occurrences of primary PTM develop as individuals age, typically around the age of 60. It is generally seen more in men than in women.

Symptoms

PTM usually does not exhibit any symptoms. In some cases, PTM itself is a sign of an underlying condition. However, the following are some of its most common signs.

Tiredness and fatigue
Blurry vision
Sleeping difficulties
Headaches
Breathlessness
Itchy skin
Tingling sensation and numbness
Pain in the joints
Nosebleeds

How is Polycythemia (High Red Blood Cell Count) diagnosed?

If you have symptoms of Polycythemia, your doctor may recommend the following tests to help identify the underlying cause.

Blood tests: A complete blood count will detect any rise in Red Blood Cells in the bloodstream as well as any abnormalities in the platelets and white blood cells. Your doctor may suggest additional blood tests if PTM appears to be a possibility.
Biopsy of bone marrow: A bone marrow biopsy is performed by obtaining a small sample of bone marrow using a needle and examining it under a microscope.
Genetic tests: Although hereditary causes of PTM are rare, your healthcare practitioner may want to examine your bone marrow for genetic abnormalities, if any. He may also suggest looking for Janus kinase 2 (JAK2) mutations in blood cells.

Treatment options for High Blood Cell Count

Treatment for PTM will be determined by the underlying cause of the illness.

In the case of Secondary Polycythemia, treating the underlying cause (such as obstructive sleep apnea) may help alleviate an elevated Red Blood Cell Count.

When it comes to Primary Polycythemia, the condition is managed by lowering both the red blood cell count and the risk of complications, such as blood clots. Also, there are treatment options available if the platelet count is abnormally high. Primary PTM treatments may include the following.

1. Phlebotomy

To manage the illness, doctors may attempt to reduce the red blood cell count using phlebotomy, which includes the manual removal of blood through one of the veins. Depending on the situation, doctors may advise extracting a specified amount of blood at regular intervals to bring the red blood cell count back to normal.

2. Medications

Phlebotomy isn't always adequate to keep red blood cell growth under control. Myelosuppressive medicines may then be prescribed by doctors to help manage blood cell counts. Hydroxyurea (Hydrea) is one such drug that inhibits the bone marrow and prevents red blood cell production.

Doctors may sometimes recommend additional medications to help reduce the symptoms. Aspirin and antihistamines are examples of such medications. Low-dose aspirin reduces the risk of clotting in many patients with primary PTM and may improve unpleasant symptoms such as headaches. Antihistamine medications may be prescribed to help relieve itching.

Prevention of High Blood Cell Count

While Polycythemia induced by an underlying condition cannot be prevented, a healthy lifestyle can lower the probability of developing Primary Polycythemia. This may include the following.

Quit smoking
Exercise on a regular basis
Drink a lot of water
Consumption of iron should be avoided
Increase your intake of vitamin B12
Avoid coffee, soda, and other diuretics
Avoid anabolic steroids and other performance-enhancing substances
If you have sleep apnea, use proper medical devices such as a CPAP
If you have heart failure, make sure you strictly adhere to your healthcare provider's treatment plan

Which Cancer Results in Higher Red Blood Cell Counts?

The majority of cancers typically cause anaemia by lowering your red blood cell count. Rarely, though, certain cancers can result in Polycythaemia, a disorder in which the red blood cell count rises excessively high. This occurs when the hormone Erythropoietin, which instructs the body to manufacture more red blood cells, is overproduced by some tumours.

A high red blood cell count can result from the following cancers:

Your body produces too many red blood cells if you have Polycythaemia Vera, a rare blood cancer.
Among adults, Renal Cell Carcinoma is the most prevalent form of kidney cancer.

Hepatocellular Carcinoma is the most prevalent form of adult-onset liver cancer.

If My Red Blood Cell Count Is High, Should I Be Concerned?

A high red blood cell count does not necessarily indicate a health issue. Other variables, such as living at a high altitude, can occasionally be the cause of it. It may, nevertheless, also indicate a disease or other condition.

You should obtain more testing if your red blood cell count is high. This aids your physician in determining the cause and whether therapy is necessary.

Frequently Asked Questions (FAQs)

Here are some FAQs related to High Red Blood Cell Count

How is HRBCC treated?

In the case of Secondary Polycythemia, treating the basic reason for it may help alleviate an elevated Red Blood Cell Count. However, when it comes to Primary Polycythemia, the treatment options may include the following.

Phlebotomy, which includes the removal of blood through one of the veins manually.

Myelosuppressive drugs such as Hydroxyurea (Hydrea), which inhibits the bone marrow and prevents Red Blood Cell production, aspirin to treat unpleasant headaches, and antihistamines to help alleviate itching.

What happens if your RBC count is too high?

When your RBC count is high, it causes the blood to thicken and increases the risk of additional health problems such as blood clots.

What are the main causes of High Red Blood Cell Count?

Genetic heart disease and Hypoxia (low blood oxygen levels) are some potential causes of High Red Blood Cell Count.

How can I maintain healthy RBC levels?

A balanced diet rich in iron, folate, and vitamin B12 is important for RBC production. Regular physical activity and staying hydrated can also support healthy RBC function

What is the lifespan of an RBC?

The lifespan of a red blood cell is around 120 days. After this time, RBCs are broken down by the liver and spleen.

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Disclaimer: The content on this page is generic and shared only for informational and explanatory purposes. Please consult a doctor before making any health-related decisions.