Why Do My Hands and Feet Burn in Polycythemia Vera?

The bright red, hot, and intensely burning sensations you are experiencing in your hands or feet may be a condition called erythromelalgia, which is a recognized complication of Polycythemia vera (PV) ^[1]. However, because red, painful extremities can also be caused by infections, gout, nerve damage, or serious blood clots, a doctor must evaluate your symptoms to confirm the diagnosis ^[2]. While erythromelalgia can be severely painful, it is often treatable, though the best approach depends on your specific blood counts, clotting risks, and bleeding history ^[3].

When to Seek Immediate Medical Care

Because PV increases your risk of dangerous blood clots, it is critical to distinguish between episodic erythromelalgia and medical emergencies ^[4]. Seek emergency medical attention immediately if you experience any of the following:

• A limb, finger, or toe that suddenly turns cold, pale, blue, or black
• Sudden, rapidly worsening, or one-sided severe pain and swelling
• New numbness, weakness, or an inability to move your hand or foot
• Signs of a systemic clot, such as chest pain, shortness of breath, coughing blood, facial droop, or sudden weakness on one side of your body ^[2].

What Causes Erythromelalgia in PV?

Polycythemia vera causes your bone marrow to produce too many red blood cells, which thickens your blood ^[5]. Many patients also experience an overproduction of platelets, the cell fragments that help blood to clot.

In erythromelalgia, the leading medical explanation involves a platelet-mediated microvascular process ^[6]. It is suspected that excess or hyperactive platelets clump together, forming microscopic clots in the smallest blood vessels (microvasculature) of the extremities ^[6]. This temporary disruption of blood flow inflames the vessels, leading to the characteristic episodes of redness, warmth, and severe burning pain ^[7][1]. Keep in mind, however, that not every person with PV has elevated platelets, and treatment goals are individualized based on your full blood count profile ^[8].

How is it Treated?

For PV-related erythromelalgia, low-dose aspirin is a common treatment and often improves symptoms ^[6][3]. Aspirin is an antiplatelet medication; it reduces the ability of platelets to stick together. For some people, aspirin therapy significantly reduces the burning and redness, but the response varies, and it does not work for everyone ^[3].

Aspirin alone is not a substitute for controlling your underlying PV ^[3][9]. Your hematologist will monitor your complete blood counts to manage your disease holistically. A primary treatment target in PV is your hematocrit—the percentage of your blood volume made up of red blood cells—which is commonly kept below 45% through therapeutic phlebotomy (blood removal) or cytoreductive medications like hydroxyurea or interferon ^[5]. Platelet targets are highly individualized based on your risk factors and symptoms ^[1].

Important Safety Warnings and Practical Advice

• Medication Safety: Never start, stop, or increase aspirin (or over-the-counter NSAIDs like ibuprofen) without your doctor’s permission. PV carries unique bleeding risks ^[1]. If your platelet count is extremely high, you may develop a condition called acquired von Willebrand syndrome, which paradoxically increases your risk of bleeding. Your doctor must evaluate your platelet counts, bleeding history, ulcer history, and other medications (like blood thinners) before recommending aspirin ^[1].
• Cooling Safely: During a burning episode, avoid tight shoes or gloves and move away from heat. Use gentle cooling methods (such as a fan), but do not use direct ice or prolonged ice-water immersion. Direct, extreme cold can easily damage already vulnerable tissue and cause severe frostbite ^[10]. Consult your care team promptly if your symptoms persist or worsen.