A rare genetic coagulation disorder characterized by a mild to moderate bleeding tendency due to impaired platelet activation and aggregation in response to collagen or impaired platelet-vessel wall interaction resulting from a collagen receptor defect. Patients manifest with ecchymoses epistaxis menorrhagia and/or post-traumatic and post-surgery bleeding complications. Laboratory analysis reveals prolonged bleeding time and occasionally mild thrombocytopenia.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
Newly diagnosed with
Bleeding diathesis due to a collagen receptor defect?
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Advocacy Organizations
Bleeding Disorders Alliance Illinois
The Bleeding Disorders Alliance Illinois exists to improve the quality of life for the inherited bleeding disorders community by supporting individuals and their families with unbiased information and resources which allows them to live healthy and active lives.
Hemophilia Foundation of Southern California
“Improving the quality of life and building community for those living with inherited bleeding disorders in Southern California.”
National Center of Hematology and Blood Transfusion
Treatment of patients with blood diseases,scientific-research works
Save One Life, Inc
Empowering individuals and families affected by bleeding disorders in developing countries through direct financial assistance and access to medical treatment.
Wave of Support, Inc
Empowering those affected by bleeding disorders and other rare disease through advocacy, resources, education, and support
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Clinical Trials
For a list of clinical trials in this disease area, please click here.