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Disease Profile


Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.


US Estimated

Europe Estimated

Age of onset

All ages





Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.


Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.


dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.


recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.


Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.

Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.


Not applicable


Other names (AKA)

Dysfibrinogenemia, familial; Congenital dysfibrinogenemia; Familial dysfibrinogenemia


Blood Diseases; Congenital and Genetic Diseases


Dysfibrinogenemia is a coagulation (clotting) disorder characterized by having an abnormal form of fibrinogen.[1] Fibrinogen is a protein produced by the liver which helps control bleeding by helping blood clots to form.[2] Having abnormal fibrinogen results in defective clot formation and can cause an increased or decreased ability to clot. Dysfibrinogenemias may be inherited (congenital) or acquired. Congenital dysfibrinogenemia is rare. About 40% of people with this form have no symptoms. About 50% have a bleeding disorder, and the remaining 10% have either a thrombotic disorder (excessive clotting) or both bleeding and thrombotic disorders.[3] Congenital dysfibrinogenemias may be caused by mutations in the FGA, FGB or FGG genes.[1] Inheritance is most often autosomal dominant or codominant, but can also be autosomal recessive.[3] Whether a person has no symptoms, a bleeding tendency, or an increased risk of thrombosis depends on the effect of their specific mutation(s).[4] Most people with dysfibrinogenemia have no symptoms and don't need treatment. For the remainder, treatment is individualized and depends on the symptoms and severity in each person.[1]

Acquired dysfibrinogenemia is more common than the congenital form and is associated with liver disease such as cirrhosis, liver tumors, or hepatitis.[1]


This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

Medical Terms Other Names
Learn More:
80%-99% of people have these symptoms
Bloody nose
Frequent nosebleeds
Nose bleed
Nose bleeding

[ more ]

Gastrointestinal hemorrhage
Gastrointestinal bleeding
Gingival bleeding
Bleeding gums
30%-79% of people have these symptoms
Venous thrombosis
Blood clot in vein


Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease

    Organizations Providing General Support

      Learn more

      These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

      In-Depth Information

      • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
      • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
      • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
      • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
      • PubMed is a searchable database of medical literature and lists journal articles that discuss Dysfibrinogenemia. Click on the link to view a sample search on this topic.


        1. Caroline Bérubé. Disorders of fibrinogen. UpToDate. Waltham, MA: UpToDate; June, 2016;
        2. Yi-Bin Chen. Fibrinogen blood test. MedlinePlus. January 27, 2015; https://medlineplus.gov/ency/article/003650.htm.
        3. Russell Burgess. Dysfibrinogenemia. Medscape Reference. October 21, 2015; https://emedicine.medscape.com/article/199723-overview.
        4. Suchitra S Acharya. Inherited Abnormalities of Fibrinogen. Medscape Reference. November 8, 2014; https://emedicine.medscape.com/article/960677-overview.