Hypofibrinogenemia (Congenital)
What is Hypofibrinogenemia (Congenital)?
Congenital hypofibrinogenemia is a rare inherited bleeding disorder. People with this condition have low levels of fibrinogen in their blood. Fibrinogen is a protein that helps blood clot when you get a cut or injury. Without enough fibrinogen, your blood may take longer to clot or may not clot properly.
This condition is present from birth and runs in families. Most cases are inherited when you receive one altered gene from a parent. The severity depends on how much fibrinogen your body can make. Blood fibrinogen levels typically range from 50 to 150 mg/dL in people with this condition, compared to the normal range of 200 to 400 mg/dL.
The condition causes a mild to moderate bleeding tendency. Many people with hypofibrinogenemia live normal lives with proper monitoring and care. Understanding your fibrinogen levels helps you and your doctor prevent bleeding complications.
Symptoms
- Easy bruising that happens with minimal injury
- Nosebleeds that occur frequently or last longer than normal
- Bleeding gums when brushing teeth or eating
- Heavy menstrual periods in women
- Prolonged bleeding after surgery, dental work, or injuries
- Blood in urine or stool
- Bleeding into joints, causing pain and swelling
- Large bruises or blood pooling under the skin
Some people with mild hypofibrinogenemia have few symptoms until they undergo surgery or experience trauma. The bleeding tendency is usually moderate, not severe like in hemophilia. Symptoms may vary based on your specific fibrinogen level.
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Causes and risk factors
Congenital hypofibrinogenemia is caused by genetic mutations that affect fibrinogen production. These mutations reduce the amount of fibrinogen your liver produces. The condition typically follows an autosomal dominant inheritance pattern. This means you only need one altered gene copy from one parent to develop the condition. In some cases, people inherit two altered genes, one from each parent, which causes more severe symptoms.
Risk factors include having a family history of bleeding disorders or unexplained bruising. The condition affects both men and women equally. There are no lifestyle factors that cause congenital hypofibrinogenemia because it is purely genetic. However, certain medications like blood thinners can worsen bleeding symptoms. Knowing your family medical history helps identify your risk.
How it's diagnosed
Doctors diagnose congenital hypofibrinogenemia by measuring fibrinogen levels in your blood. A simple blood test can detect low fibrinogen and confirm the diagnosis. Normal fibrinogen levels range from 200 to 400 mg/dL. People with hypofibrinogenemia typically have levels between 50 and 150 mg/dL. Your doctor may also perform clotting time tests to see how well your blood forms clots.
Rite Aid offers fibrinogen testing as an add-on through our Quest Diagnostics lab network. You can get tested at over 2,000 Quest locations nationwide. Early diagnosis helps prevent bleeding complications during surgeries and injuries. Genetic testing may also be recommended to identify the specific gene mutation and help with family planning decisions.
Treatment options
- Avoid contact sports and activities with high injury risk
- Inform all healthcare providers about your bleeding disorder before procedures
- Use soft toothbrushes and gentle dental care to prevent gum bleeding
- Avoid medications that increase bleeding risk, such as aspirin and ibuprofen
- Fibrinogen replacement therapy before surgeries or after major bleeding episodes
- Cryoprecipitate transfusions to quickly raise fibrinogen levels during emergencies
- Antifibrinolytic medications like tranexamic acid to help prevent bleeding
- Hormonal birth control to manage heavy menstrual bleeding in women
- Regular monitoring of fibrinogen levels with blood tests
- Wear medical alert jewelry to inform emergency responders of your condition
Need testing for Hypofibrinogenemia (Congenital)? Add it to your panel.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
Congenital hypofibrinogenemia is inherited and present from birth due to genetic mutations. Acquired hypofibrinogenemia develops later in life from conditions like liver disease, severe infections, or cancer. The congenital form is much rarer and requires genetic testing to confirm. Treatment approaches may differ based on whether the condition is inherited or acquired.
Testing frequency depends on your symptoms and treatment plan. Most people with congenital hypofibrinogenemia need testing annually or before any surgical procedures. Your doctor may recommend more frequent testing if your symptoms change or if you start new medications. Regular monitoring helps prevent bleeding complications and guides treatment decisions.
Most people with congenital hypofibrinogenemia experience mild to moderate bleeding rather than severe episodes. Serious bleeding can occur after surgery, trauma, or dental procedures without proper precautions. Heavy bleeding episodes may require fibrinogen replacement therapy. Working closely with a hematologist helps manage your risk and prevents complications.
There is currently no cure for congenital hypofibrinogenemia because it is a genetic condition. However, the condition is very manageable with proper care and monitoring. Most people live normal lives by avoiding high-risk activities and receiving treatment when needed. Researchers continue to study gene therapy approaches that may offer future treatment options.
Seek medical attention immediately if you have heavy bleeding that does not stop with pressure. For minor bleeding like nosebleeds, apply gentle pressure for 10 to 15 minutes. Contact your hematologist if you notice increased bruising, joint swelling, or blood in your urine or stool. Keep emergency contact information for your medical team readily available.
Yes, most women with hypofibrinogenemia can have safe pregnancies with proper medical care. Fibrinogen levels naturally increase during pregnancy, which may reduce bleeding risk. However, careful monitoring by a hematologist and obstetrician is essential throughout pregnancy and delivery. Some women may need fibrinogen replacement therapy during or after childbirth.
Avoid aspirin, ibuprofen, naproxen, and other nonsteroidal anti-inflammatory drugs that increase bleeding risk. Blood thinners like warfarin or heparin can also worsen symptoms. Always tell your doctor and pharmacist about your bleeding disorder before starting any new medication. Some supplements like fish oil and vitamin E may also increase bleeding and should be used cautiously.
If you have congenital hypofibrinogenemia, each of your children has a 50 percent chance of inheriting the condition. This assumes the condition follows an autosomal dominant pattern with one altered gene. Genetic counseling can help you understand your specific inheritance pattern and risks. Your children can be tested for the gene mutation or have their fibrinogen levels checked.
You can participate in many sports, but contact sports like football, hockey, and boxing carry higher bleeding risks. Low-impact activities like swimming, walking, cycling, and tennis are generally safer options. Talk to your hematologist about which activities are appropriate for your specific fibrinogen level. Wearing protective gear and informing coaches about your condition is important for any physical activity.
Fibrinogen replacement is given through an intravenous infusion, usually in a hospital or clinic setting. The infusion takes about 30 to 60 minutes and quickly raises your fibrinogen levels. You may receive treatment before planned surgeries or after serious bleeding episodes. Some patients learn to self-administer treatment at home with proper training from their medical team.