Allergy

Willow Pollen Test (IgE) — Detect Early Spring Willow Allergy

Willow pollen is among the first to bloom in spring, often as early as March. It can trigger typical pollen allergy symptoms including sneezing, nasal congestion, and itchy eyes. This IgE blood test helps identify whether your early spring symptoms are due to willow pollen sensitisation.

Why Test Willow Pollen?

This test is useful if you experience allergy symptoms very early in the spring, before birch or grass pollen seasons begin. Identifying willow as a trigger helps guide treatment timing and allergen avoidance strategies.

What Do High Willow Pollen Levels Mean?

High IgE levels indicate sensitisation to willow pollen, supporting a diagnosis of willow pollen allergy and explaining early spring symptoms.

What Do Low Willow Pollen Levels Mean?

Low IgE levels make willow pollen allergy unlikely. Other early-blooming trees such as hazel, alder, or aspen may be responsible for your symptoms.

Symptoms to Watch For

  • Sneezing and runny nose in early spring (March)
  • Itchy or watery eyes
  • Nasal congestion
  • Throat irritation
  • Asthma-like symptoms early in the season

Who Should Get Tested?

  • People with allergy symptoms starting in March
  • Those who react before birch pollen season
  • Individuals needing to identify early-season pollen triggers
  • Anyone considering allergy immunotherapy

How to Prepare for Your Test

No special preparation is required. No fasting needed. Bring your ID to the sampling location. Bring valid ID to your appointment.

Frequently Asked Questions

When does willow pollen season start?
Willow pollen can begin as early as March in Sweden, making it one of the first tree pollens of the year.
Is willow pollen allergy common?
Willow pollen allergy is less common than birch or grass pollen allergy, but it can cause significant symptoms in sensitised individuals, especially given its early bloom.
Can willow allergy overlap with other tree pollen allergies?
Yes. Willow pollen season can overlap with hazel and alder, so specific IgE testing helps distinguish which pollen is the trigger.
NW

Reviewed by

Wellth Team

Wellth

Our content is written and reviewed by Wellth, and fact-checked against peer-reviewed research and current Swedish clinical guidelines.

Learn more about our team →

Medical Disclaimer

The information on this page is provided for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. Wellth provides health information and testing services but is not a substitute for clinical care. Always consult a qualified healthcare provider if you have questions about a medical condition. If you are experiencing severe or urgent symptoms, contact your doctor or call 1177 Vårdguiden. Blood test results should be interpreted by a qualified healthcare professional in the context of your complete medical history.