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Dog Nose Bleed Causes and Treatment

Dog nose bleed can be caused by trauma, foreign bodies in the nasal passage, problems in the oral cavity, infections and even cancers. Therefore, if your dog is bleeding from the nose, you need to quickly determine exactly where the blood is coming from in order to try to have a better understanding of the underlying cause. Read this page for information on the possible causes and treatment of dog nosebleeding.

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Nosebleeding is rather common in humans, but it can be quite worrisome when it comes to our canine friends. If you see your dog with a bloody nose, don't panic. Stay calm and try to take a few moments to look carefully at your dog's nose.

Wipe away the blood with a clean, damp, white cloth. This will enable you to ascertain where exactly the bleeding is coming from. Check for bruises and cuts, as well as your dog's breathing. Place your cheek close to his nostrils and see if the passage of air through the two nostrils is the same, or if one nostril seems to be partially blocked.

Dog nose bleed is generally caused either by a single, acute event (such as trauma to the nose), or by more chronic physical problems (such as a tumor).

Dog Nose Bleed Causes

Possible causes of dog nose bleeding include:
  • Foreign Bodies: A foreign body (e.g. foxtails) that has found its way into the dog's nasal passage can puncture a blood vessel and cause nosebleeding. The foreign body can also cause inflammation resulting in blood-tinged nasal discharge.
  • Trauma: Trauma can be caused by lacerations of the nostrils by sharp objects, or puncture wounds such as bite wounds, or from objects such as thorns or barbed wire, or nasal fractures by car accidents, or a hit by a hard object like a baseball bat. All these can cause a dog nose bleed.
  • Nasal Infections: Severe nasal bacterial, parasitic, or fungal infections can result in sneezing and bloody nasal discharge. Nosebleeds are often accompanied by bouts of violent sneezing which can aggravate the bleeding.
  • Problems in the Mouth: Any injury to the oral cavity, which has a direct connection to the nasal sinuses, can result in nose bleeding, especially if the dog is sneezing.
  • Generalized Clotting Disorders: A spontaneous dog nose bleed may be an indication of a blood-clotting disorder such as hemophilia or von Willebrand's disease. Tick-borne infections such as canine ehrlichiosis and Rocky Mountain Spotted Fever can also cause nosebleeding in dogs. Vitamin K deficiency, commonly caused by ingestion of anticoagulant rat poisons, is another cause of spontaneous nosebleeding in dogs.
  • Certain Medications: Some medications, such as aspirin products, can make a dog more prone to bleeding.
  • Nasal Cancer: Nasal tumors are a common cause of chronic nosebleeding in older dogs. The nose bleed is unilateral (i.e. from one nostril only). If your dog is bleeding from one nostril, watch out for other symptoms, such as facial swelling, bad breath, frequent sneezing, and difficulty breathing.

How To Identify the Cause of Dog Nose Bleed

While examining your dog's nose, ask yourself these questions in order to try to identify the exact cause of the nose bleed and determine the best course of action:
  • Did your dog recently have some trauma?

    If your dog had some recent trauma, such as a collision with a hard object, the nose bleeding is likely to be caused by such trauma. In that case, the key is to stop the bleeding and make sure that there is no serious injury.

    Apply a cold pack to your dog's nose and keep it pointing upward. Once the bleeding is under control, check your dog carefully for signs of physical injury (such as swelling, bruising, etc.) and neurological damage (such as confusion, balance issue). If you see any such signs, you should take your dog to the vet for further treatment.
  • Is the bleeding from both nostrils or just one?

    If the nosebleeding is from one nostril, it could be a foreign object in the nasal cavity, in which case the nostril will also likely be partially blocked. A blocked nostril makes a significantly higher pitched sound as air is forced through a narrower passage.

    If you have an older dog, and the nose bleed is chronic and from one nostril, it may be nasal cancer.

    If any of these possibilities is present, a visit to the vet is necessary.
  • Does the nose bleed start spontaneously without any obvious reason?

    If you cannot explain the onset of the nose bleed, you should take the dog to the vet for a thorough checkup to see if the bleeding is caused by clotting disorders or ingestion of anticoagulants.
  • Is there any sign of injury to your dog's mouth?

    As mentioned above, your dog's nose bleeding may be caused by an injury to your dog's mouth. Therefore, check his mouth as well if you cannot find any injuries to his nose or muzzle.

First Aid Treatment of Dog Nose Bleed

Keep your dog as quiet and calm as possible. Apply an ice pack wrapped in cloth to the bridge of his nose. If the nostril is bleeding and the bleeding site is visible, apply steady pressure with a gauze square.

Note:

Take your dog to the vet immediately if:
  • The bleeding does not stop.
  • There is bleeding in other parts of the body.
  • You cannot find any obvious cause.
  • You see signs of anemia (weakness, lethargy, pale gums).
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