Erythrocytosis
Erythrocytosis is a condition in which your body produces too many red blood cells (RBCs). This increases the thickness (viscosity) of your blood, making it harder to flow smoothly through your blood vessels and increasing the risk of blood clots, heart attacks, or strokes.
It is sometimes referred to as polycythaemia, especially when caused by bone marrow disorders.
Erythrocytosis Overview
Understanding Causes, Symptoms, and Risk Factors
Causes
Erythrocytosis can be primary (due to a problem in the bone marrow) or secondary (due to another condition or factor).
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Chronic low oxygen (hypoxia) due to lung disease (e.g. COPD), sleep apnoea or living at high altitudes
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Tumours producing erythropoietin (EPO) from kidney, liver, or adrenal gland tumours
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Kidney disease
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Anabolic steroid use
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Congenital heart disease
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Smoking
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Dehydration (relative erythrocytosis)
Symptoms
- Headaches
- Dizziness or lightheadedness
- Blurred vision
- Red or flushed skin (especially face)
- Itching (particularly after a hot shower – in PV)
- Fatigue
- High blood pressure
- Numbness or tingling in hands and feet
- Enlarged spleen (splenomegaly)
If left, untreated may increase the risk of blood clots, stroke or a heart attack.
Risk Factors
Can Erythrocytosis be prevented?
Primary erythrocytosis cannot be prevented however secondary erythrocytosis can be prevented.
Secondary Erythrocytosis can prevented by managing the underlying condition and maintaining adequate hydration.
How Chequers can help Diagnose and Treat
Preventive, Trusted, and Affordable Healthcare for All
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At Chequers Health, our specialists blend expertise, compassion, and convenience to deliver the care you deserve. We prioritise quick access and personalised care, ensuring that your health needs are addressed promptly and effectively by trusted professionals.
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