Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
Stress, pregnancy, and estrogen can raise levels and hide the condition; testing may be repeated.
Why it's done
- Heavy periods since your first period
- Easy bruising, frequent nosebleeds, or heavy bleeding after dental work or surgery
- Family history
Getting ready and what happens
- Avoid testing during illness or right after exercise, if possible.
How the test is done
- A health worker cleans the skin, puts a band around your arm, and draws blood from a vein with a small needle. It takes a few minutes.
What the results mean
Low
Supports von Willebrand disease. Treatment helps before procedures and for heavy periods.
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
Risks
A blood draw is very safe. You may have slight pain or a small bruise where the needle went in.
Related conditions
Related medicines
Related tests
Sources
Last updated 2026-11-13.