What is von Willebrand disease in dogs?
Von Willebrand disease (vWD) is the most common hereditary blood disorder in dogs, caused by a deficiency or dysfunction of von Willebrand factor (vWF) — a protein essential for normal blood clotting. Affected dogs bleed longer than normal after injury or surgery because platelets cannot adhere properly to damaged blood vessel walls.
MaxPetz in Delhi provides veterinary care for canine blood disorders, including diagnosis and management of von Willebrand disease, using cutting-edge technology and compassionate service for your beloved pets.
Key fact: Unlike haemophilia, vWD affects both male and female dogs equally, as the gene is carried on a non-sex chromosome.
There are three types of vWD in dogs:
- Type 1 — Partial quantitative deficiency of vWF; the mildest and most common form.
- Type 2 — Qualitative deficiency; vWF is present but abnormal in structure.
- Type 3 — Complete absence of vWF; the most severe form, associated with serious haemorrhage.
What are the signs of abnormal bleeding in dogs with von Willebrand disease?
Clinical signs of vWD vary depending on the type and severity of the disorder. Many dogs with Type 1 vWD show no obvious symptoms until they undergo surgery or sustain an injury. Owners should watch for the following warning signs:
- Prolonged bleeding from minor cuts or wounds
- Spontaneous nosebleeds (epistaxis)
- Bleeding from the gums or mouth
- Blood in the urine (haematuria)
- Blood in the faeces (melaena or haematochezia)
- Excessive bruising under the skin
- Prolonged bleeding after routine procedures such as nail trimming
- Bleeding into joints, causing lameness (more common in Type 3)
- Unexpected heavy bleeding during or after surgery
Warning: Uncontrolled or recurring bleeding in your dog is a medical emergency. Seek veterinary attention immediately — do not wait to see if the bleeding stops on its own.
Which dog breeds are prone to von Willebrand disease?
Von Willebrand disease has been identified in more than 50 dog breeds. Certain breeds carry a significantly higher genetic risk. If you own one of the breeds listed below, discuss screening with your veterinarian before any planned surgery or procedure.
| vWD Type | Commonly Affected Breeds |
|---|---|
| Type 1 | Dobermann Pinscher, German Shepherd, Golden Retriever, Standard Poodle, Miniature Schnauzer |
| Type 2 | German Wirehaired Pointer, German Shorthaired Pointer |
| Type 3 | Scottish Terrier, Shetland Sheepdog, Chesapeake Bay Retriever |
The Dobermann Pinscher is among the most frequently affected breeds, with a high prevalence of Type 1 vWD reported in the breed population globally.
How is von Willebrand disease diagnosed in dogs?
Accurate diagnosis of canine vWD requires specific laboratory testing. A routine blood count alone is not sufficient to confirm the condition. Your veterinarian may recommend one or more of the following diagnostic steps:
- Buccal mucosal bleeding time (BMBT) — A small standardised incision is made inside the lip; the time taken for bleeding to stop is measured. A prolonged BMBT suggests a platelet or vWF problem.
- vWF antigen assay — A blood test that measures the quantity of von Willebrand factor in the plasma. This is the most commonly used confirmatory test.
- vWF multimer analysis — Assesses the structural quality of vWF; used to distinguish Type 1 from Type 2.
- DNA genetic testing — Available for certain breeds (e.g. Dobermann, Scottish Terrier); identifies carriers before clinical signs appear and is recommended for breeding dogs.
- Coagulation profile — Rules out concurrent clotting factor deficiencies.
Tip: Inform your veterinarian of your dog's breed before any elective surgery. Pre-operative vWF screening can prevent life-threatening intraoperative bleeding.
How is von Willebrand disease treated in dogs?
There is currently no cure for vWD in dogs; management focuses on controlling bleeding episodes and preparing the dog safely for surgical procedures. Treatment is tailored to the severity of the disease and the clinical situation.
- Desmopressin (DDAVP) — A synthetic hormone that temporarily increases vWF release from blood vessel walls. Used before minor procedures in Type 1 dogs; effectiveness varies by individual.
- Fresh whole blood or fresh frozen plasma transfusion — Provides functional vWF directly; the primary treatment for active, serious bleeding or pre-surgical preparation in Type 2 and Type 3 dogs.
- Cryoprecipitate — A blood product concentrated in vWF; preferred when available for severe bleeding episodes.
- Wound management — Careful surgical technique, haemostatic agents, and pressure dressings to minimise blood loss during procedures.
- Avoiding triggering medications — Certain drugs (e.g. aspirin, some antibiotics, and non-steroidal anti-inflammatory drugs) impair platelet function and must be avoided in vWD-affected dogs.
Long-term, dogs with mild Type 1 vWD can live normal lives with appropriate precautions. Dogs with Type 3 require more intensive monitoring and management.
Can dogs with von Willebrand disease have surgery safely?
Yes — with proper pre-operative planning, many dogs with vWD can undergo surgery safely. The key is identifying the condition before the procedure, not during an emergency bleed. Steps a veterinary team should take include:
- Confirm vWD diagnosis and type prior to scheduling elective surgery.
- Measure baseline vWF antigen levels to gauge severity.
- Administer desmopressin or arrange blood product transfusion before the procedure as indicated.
- Have compatible fresh whole blood or cryoprecipitate available in theatre.
- Use meticulous surgical technique to minimise tissue trauma and bleeding.
- Monitor the patient closely in the post-operative period for delayed bleeding.
Elective procedures such as spaying, neutering, or dental extractions should never be performed in a dog with suspected or confirmed vWD without these precautions in place.
When should you bring your dog to a veterinarian for a bleeding concern?
Seek veterinary attention promptly — do not wait — if your dog shows any of the following:
- Any wound that has not stopped bleeding within 5 minutes of firm, continuous pressure
- Nosebleeds lasting more than 2–3 minutes or recurring more than once
- Visible blood in urine or faeces without a known cause
- Unexplained bruising or swelling under the skin
- Excessive bleeding following a routine nail trim or minor cut
- Lethargy, pale gums, or rapid breathing alongside any bleeding sign — these indicate significant blood loss requiring emergency care
If your dog belongs to a high-risk breed and you are planning any surgical procedure, schedule a pre-operative blood disorder screening at least one to two weeks in advance.
MaxPetz in Delhi offers veterinary consultations for canine blood disorders, including pre-surgical screening for hereditary conditions such as vWD. Use the booking form on this page to arrange an appointment.
Book a consultation at MaxPetz Delhi
Use the booking form on this page to speak with a veterinary professional about your dog's bleeding health.
How does MaxPetz Delhi support dogs with blood disorders?
MaxPetz in Delhi provides veterinary care for canine blood disorders — including hereditary conditions such as von Willebrand disease — combining cutting-edge diagnostic technology with compassionate, individualised attention for every patient. The clinical team can guide owners of at-risk breeds through genetic screening, pre-surgical planning, and ongoing management protocols to keep affected dogs safe and comfortable throughout their lives.
For breed-specific screening, diagnostic workups, or advice on managing a dog already diagnosed with vWD, use the booking form on this page to connect with the MaxPetz Delhi veterinary team.
- Diagnostic blood testing for canine blood disorders
- Pre-surgical bleeding risk assessment
- Compassionate management plans for chronic hereditary conditions
- Guidance on genetic screening for breeding dogs