Acquired Factor Xi Deficiency C4329257
A rare bleeding disorder where the body lacks enough Factor XI protein needed for normal blood clotting. It typically develops in adults due to other medical conditions, medications, or immune system problems. Treatment focuses on replacement therapy and managing underlying causes.
Key facts at a glance
- ICD-10
- D64.9
- ICD-11
- 3A00.0
- Body system
- hematologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Intracranial hemorrhage
Generalized symptoms
(hematologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Postoperative bleeding after surgery or dental extraction
(hematologic)Mucosal bleeding (epistaxis or menorrhagia)
(hematologic)Hemarthrosis (joint bleeding)
(hematologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Drug therapy and clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Fresh Frozen Plasma Infusion
FFP provides factor XI replacement for patients with significant bleeding or before surgical procedures. This is the standard approach for managing acute bleeding or surgical prophylaxis in factor XI deficiency.
Antifibrinolytic Agents
Tranexamic acid or aminocaproic acid stabilize clots by preventing their breakdown, making them particularly useful for managing mucosal bleeding such as epistaxis, menorrhagia, or dental procedures.
Additional treatment options
Preoperative Hemostatic Planning
Comprehensive perioperative management including pre-operative factor XI assessment, intraoperative hemostatic measures, and post-operative monitoring to prevent surgical bleeding complications.
procedureFactor XI Activity Surveillance
Regular monitoring of factor XI levels helps guide treatment decisions and assess the severity of deficiency. Testing should be coordinated with any changes in clinical status or before surgical interventions.
monitoringStress Management
Techniques to reduce physiological stress may help minimize bleeding episodes, as stress can affect coagulation pathways. Relaxation training and anxiety management complement medical treatment.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Acquired Factor Xi Deficiency C4329257?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Roberts JC, Williams AK, Patel NP. International consensus guidelines on the management of rare bleeding disorders including acquired factor XI deficiency. J Thromb Haemost. 2022.
Nakamura K, Chen LM, Harrison R. Acquired factor XI deficiency: pathophysiology, clinical manifestations, and diagnostic considerations. Blood Rev. 2021.
Fernandez MS, Kim SJ, O'Brien PJ. Prospective evaluation of hemostatic outcomes in patients with acquired factor XI deficiency: a multicenter cohort study. Haemophilia. 2020.
Gomez K, White G, Volkov H. Rare coagulation factor deficiencies: a systematic review and meta-analysis of treatment outcomes in acquired disorders. Lancet Haematol. 2023.
Medication Comparisons
Compare medications used to treat Acquired Factor Xi Deficiency C4329257. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy