What does persistent itching feel like with polycythaemia vera?

The itch may affect large areas, including the arms, legs, chest or back, while the skin looks fairly normal. Warm showers or baths can trigger a sudden flare that feels like pins and needles, stinging or burning. Scratching may leave marks or sores. Polycythaemia vera can also cause headaches, dizziness, tiredness, blurred vision, redness of the face or a feeling of fullness under the ribs. These symptoms can have other causes, so assessment is needed to understand the pattern.

Arrange a medical review for ongoing itching, especially when water reliably triggers it or when other changes occur. Note water temperature, timing, affected areas, skin appearance and associated symptoms. Use lukewarm rather than hot water, pat the skin dry, apply a fragrance-free moisturiser and choose loose clothing. A clinician may review blood results, medicines and circulation-related symptoms; do not alter treatment without advice.

Seek urgent help for chest pain, sudden breathlessness, weakness on one side, trouble speaking, fainting, severe headache, or new vision loss. Contact your clinician promptly for worsening redness, unusual bleeding, painful swelling, or severe itching that prevents sleep.

Ask whether the water-triggered pattern fits polycythaemia vera, whether medicines or skin conditions could contribute, which bathing and moisturising products are suitable, and which circulation symptoms need urgent help.