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Blood Group Test - Find Out Your Blood Type & Rh Factor

Your blood group is determined by the type you inherited from your parents. A blood group test identifies which of the four main types — A, B, AB, or O — you belong to, and whether you carry the Rh factor on the surface of your red blood cells. Knowing your blood type is essential in medical situations such as blood transfusions and pregnancy, where Rh incompatibility can cause complications.

Why Test Blood Group?

Knowing your blood group is important if you are or plan to become pregnant, as Rh factor incompatibility between mother and baby can lead to complications. It is also critical information for safe blood transfusions and organ donations. Some people also test their blood group out of personal curiosity.

What Do High Blood Group Levels Mean?

Blood group results are not expressed as high or low values. Instead, the test identifies your specific type (A, B, AB, or O) and Rh status (positive or negative). Your healthcare provider uses this information to determine which blood components you can safely receive or donate.

What Do Low Blood Group Levels Mean?

This test does not produce high or low values. The result is a classification — your blood type and Rh factor — rather than a numerical measurement.

Symptoms to Watch For

  • No specific symptoms — this is a classification test
  • May be requested before surgery or transfusion
  • Relevant during pregnancy for Rh factor assessment

Who Should Get Tested?

  • Anyone who does not know their blood type
  • Women who are pregnant or planning a pregnancy
  • People who may need a blood transfusion or surgery
  • Potential organ or blood donors

How to Prepare for Your Test

No preparation is needed for this test. Remember to bring valid ID to the sampling clinic.

Order Your Blood Test

Test your Blood Group levels with an accredited Swedish laboratory. Results within days, reviewed by Wellth.

Blood Group →

Frequently Asked Questions

Why is Rh factor important during pregnancy?
If the mother is Rh-negative and the baby is Rh-positive, the mother's immune system may produce antibodies that attack the baby's red blood cells. This can be prevented with an injection of anti-D immunoglobulin.
Can my blood type change over time?
No, your blood type is genetically determined and remains the same throughout your life. Extremely rare exceptions exist, such as after a bone marrow transplant.
Is the 'blood type diet' scientifically proven?
There is currently no strong scientific evidence supporting diets tailored to specific blood types. A balanced, nutrient-rich diet benefits everyone regardless of blood group.
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Wellth Team

Wellth

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

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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.