Von Willebrand Disease

What is Von Willebrand disease?

Von Willebrand disease is a genetic bleeding disorder that affects how your blood clots. People with this condition lack enough of a protein called von Willebrand factor, or the protein does not work correctly. This protein helps blood cells stick together to form clots and stop bleeding when you get injured.

The condition is the most common inherited bleeding disorder. It affects about 1 in 100 people, though many cases are mild and go undiagnosed. Von Willebrand disease is different from hemophilia, though both affect blood clotting. The disease ranges from mild to severe depending on how much the protein is reduced or how poorly it functions.

Most people with Von Willebrand disease can live normal lives with proper management. Understanding your bleeding risk helps you prepare for surgeries, dental work, and injuries. Early diagnosis allows you to work with doctors on a treatment plan that fits your specific needs.

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Symptoms

Frequent or prolonged nosebleeds lasting more than 10 minutes
Easy bruising or bruises with lumps underneath the skin
Heavy or prolonged menstrual bleeding lasting more than 7 days
Blood in urine or stool
Bleeding from cuts that lasts more than 15 minutes or restarts after stopping
Excessive bleeding after surgery, dental work, or tooth extraction
Bleeding from the gums when brushing teeth
Blood in vomit

Some people with mild Von Willebrand disease may not notice symptoms until they have surgery or a major injury. Women often discover the condition due to heavy menstrual periods. The severity of symptoms depends on how much von Willebrand factor is present in the blood.

Causes and risk factors

Von Willebrand disease is caused by genetic mutations that affect the von Willebrand factor protein. Most people inherit the condition from one or both parents. Type 1 and Type 2 follow an autosomal dominant pattern, meaning you only need one copy of the changed gene to have symptoms. Type 3, the rarest and most severe form, requires two copies of the changed gene, one from each parent.

You cannot prevent Von Willebrand disease because it is inherited. Risk factors include having a family history of bleeding disorders or unexplained bleeding episodes. The condition affects men and women equally, though women are more likely to notice symptoms due to menstruation and childbirth. Some people develop acquired Von Willebrand syndrome later in life due to other medical conditions, though this is rare.

How it's diagnosed

Doctors diagnose Von Willebrand disease through a combination of personal history, family history, and specialized blood tests. Your doctor will ask about bleeding episodes, how long bleeding lasts, and whether family members have similar symptoms. A physical exam checks for unusual bruising or other signs of bleeding problems.

Blood tests measure von Willebrand factor levels and how well the protein works. A Partial Thromboplastin Time test, or PTT, measures how long it takes blood to clot and may show prolonged clotting time. Additional specialized tests measure von Willebrand factor antigen, activity, and type. Because test results can vary, doctors may repeat testing to confirm the diagnosis. Talk to a doctor about specialized testing if you have unexplained bleeding symptoms.

Treatment options

Desmopressin medication to release stored von Willebrand factor before procedures or during bleeding
Replacement therapy with clotting factor concentrates containing von Willebrand factor
Antifibrinolytic medications to slow the breakdown of blood clots
Hormonal birth control to reduce heavy menstrual bleeding in women
Avoiding blood-thinning medications like aspirin and ibuprofen
Using protective gear during sports and activities to prevent injuries
Informing all healthcare providers and dentists about your condition before procedures
Wearing a medical alert bracelet to inform emergency responders

Frequently asked questions

Von Willebrand disease and hemophilia are both bleeding disorders but involve different proteins. Von Willebrand disease affects von Willebrand factor, while hemophilia affects clotting factors VIII or IX. Von Willebrand disease is more common and affects men and women equally. Hemophilia primarily affects males and is usually more severe.

Von Willebrand disease cannot be cured because it is a genetic condition. However, it can be managed successfully with proper treatment and precautions. Most people with the condition live normal, active lives. Treatment focuses on preventing bleeding episodes and managing symptoms when they occur.

Most people with Von Willebrand disease have mild symptoms that are not life threatening. Severe bleeding can occur after surgery, trauma, or childbirth if the condition is not properly managed. Type 3, the rarest form, carries the highest risk of serious bleeding. Proper diagnosis and treatment planning significantly reduce risks.

Heavy periods that last more than 7 days, require changing pads every 2 hours, or cause anemia may be linked to Von Willebrand disease. Other signs include passing large blood clots or flooding through protection. About 1 in 10 women with heavy menstrual bleeding has Von Willebrand disease. Talk to your doctor about testing if you have these symptoms.

Yes, you can have surgery with proper planning and treatment. Your doctor will give you medication before surgery to increase von Willebrand factor levels or provide replacement therapy. Inform your surgeon and anesthesiologist about your condition well before the procedure. Most surgeries can be performed safely with appropriate precautions and monitoring.

Your children have a 50% chance of inheriting Type 1 or Type 2 Von Willebrand disease if you have one of these types. Type 3 requires both parents to carry the gene, so children have a 25% chance if both parents are carriers. Genetic counseling can help you understand inheritance patterns. Not all children who inherit the gene will have noticeable symptoms.

Avoid aspirin, ibuprofen, naproxen, and other nonsteroidal anti-inflammatory drugs because they interfere with blood clotting. Blood thinners like warfarin and clopidogrel should also be avoided unless specifically prescribed by your doctor. Always check with your healthcare provider before taking any new medication, including over-the-counter drugs. Acetaminophen is generally safe for pain relief.

Children with Von Willebrand disease often experience frequent nosebleeds, easy bruising, and prolonged bleeding from minor cuts. Adults may notice symptoms during dental work, surgery, or childbirth. Women often discover the condition due to heavy menstrual bleeding starting in their teenage years. Symptoms remain consistent throughout life, though awareness and management improve with age.

Stress and diet do not directly cause Von Willebrand disease symptoms because the condition is genetic. However, eating foods rich in vitamin K and iron may support overall blood health. Staying hydrated helps maintain proper blood volume. Stress can sometimes trigger nosebleeds in people prone to them, but it does not change von Willebrand factor levels.

Most people benefit from seeing a hematologist, a doctor who specializes in blood disorders. A specialist can confirm your diagnosis, determine your disease type, and create a personalized treatment plan. You may only need to see the specialist once or twice a year if your symptoms are mild. Your primary care doctor can manage routine care once a treatment plan is established.