Given that the condition involves tissues we cannot immediately view, internal bleeding in dogs can be challenging to identify. Since internal blood loss will significantly alter how the dog’s body functions, internal haemorrhage indicators are frequently systemic in nature. Internal bleeding can come from a number of issues, even though a rupture of the blood vessels is the direct cause. Even though we do not see any injuries, physical trauma is one of the most frequent. Among other things, it’s also possible that acquired or hereditary disorders can result in internal bleeding.

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At AnimalWised, we examine the symptoms and care for canine internal bleeding. We consider the best ways to assist the dog when taking

What does canine internal bleeding entail?

When a blood vessel ruptures, bleeding happens. The smallest to largest blood vessels can be capillaries, veins, or arteries. There may be internal or external bleeding. A hemorrhage happens when the skin’s blood vessels are lacerated, punctured, or cut. Rarely fatal if only external tissue is harmed. Internal bleeding, where the extravasated blood is trapped in a body cavity and a guardian is unable to directly witness it, is problematic.

Hypovolemic shock is the greatest risk factor for internal bleeding in dogs. When the blood arteries in the body become empty, oxygen cannot be delivered to the cells. It might result in the animal’s demise. 

A dog experiences bleeding that results in hypovolemic shock when its blood volume is reduced by 30%. The dog’s body will enter shock if it loses about 30% of its blood volume.

causes of canine internal hemorrhage

An internal hemorrhage can occur due to capillaries, veins, and arteries breaking or leaking, as previously mentioned. Although this is the direct source of internal bleeding, there are other circumstances that could result in blood vessel rupture:


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Trauma: One of the most frequent causes of internal bleeding in dogs is physical trauma to the vessel. Even if the external tissue does not appear to be harmed, these internal structures might burst as a result of a car accident, a fall, or even physical abuse.

Since essential organs are located in certain regions, such as the head, thorax, and abdomen, these are especially concerning.

Neoplasms: Neoplasms are the product of excessive cell growth, which manifests as a mass. They can be malignant, although they can also be benign in the form of canine lipoma or cysts. Even benign neoplasms, which are less harmful but still necessitate specific treatment like chemotherapy for dogs, can result in internal bleeding. This happens when the blood arteries are harmed by the mass’s expansion.


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Potent drugs like dexketoprofen can cause internal bleeding in dogs, making it crucial to monitor symptoms for early diagnosis. Common signs include weakness, white mucosal membranes, unsteadiness, cold skin, thirst, anxious breathing, and consciousness loss. It’s essential to seek medical attention from a specialist if a dog passes blood in its stool.

Internal bleeding in dogs treatment

If your dog is experiencing internal bleeding, lay them down in a comfortable position and keep them warm with a blanket or hot water bottle. Seek assistance immediately and take the dog to a trusted veterinary clinic. Monitor vital signs, temperature, and gum color during the journey to help the vet diagnose the issue.

You will need to give the veterinary professional at the clinic all the information you can once you arrive. The potential reason for the bleeding, the condition of their mucous membranes, the symptoms they exhibit, etc. are all included in this. The veterinarian may use various procedures to control internal bleeding in the canine patient, including:

fluid treatment

transfusions of blood

Oxygen Surgery

The underlying source of the internal bleeding can be identified and treated after it has been halted. Specific treatments will be given depending on the source of the bleeding, but you must never attempt to self-medicate your dog at home.