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Is factor V Leiden mutation related to any health issues?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

These are my daughter's bloodwork results that were done nine months ago. I was never told about any of these results until I recently asked for copies of her medical record. This year, she had irregular and heavy menstrual bleeding and developed a large hemorrhagic ovarian cyst with torsion, which had to be removed or corrected with surgery. Now, she is on Tylenol, multivitamins, omega-3 supplements, and Colace (Docusate sodium) for constipation after surgery. Here are her details

  1. Prothrombin time: 13 seconds.
  2. Activated partial thromboplastin time: 32.6 seconds.
  3. Functional protein S: 61% (L).
  4. Free protein S: 92%.
  5. Total protein S: 106%.
  6. Functional antithrombin III: 140% (H).
  7. Factor V Leiden mutation: Single R506Q mutation identified (heterozygote) (H).
  8. Coagulation Factor VIII Activity: 116%.
  9. Von Willebrand Factor: 133%.

I want to ask you

  1. Do these results show her to be at risk for any other issues or health problems?

  2. Should I seek a second opinion?

Kindly suggest.

Thank you.

Hello,

Welcome to icliniq.com.

I have read your query and can understand your concern.

Protein S deficiency causes an increased risk of developing blood-clotting disorders, mainly thrombosis. It can be hereditary or acquired. Acquired protein S deficiency is seen in liver disease or vitamin K deficiency.

Your daughter is heterozygous for the factor V Leiden mutation, which further increases the risk of thrombosis and developing clots. It is advisable that you consult with a hematologist to determine if she might require any monitoring or prophylaxis.

I hope I have answered your query.

Revert in case you have any doubts.

Thank you.

Answered byDr. Singh Smrita

Medically reviewed byiCliniq medical review team

Published At February 21, 2018
Reviewed AtNovember 4, 2025

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