What are Internal Bleeding and its Symptoms in Dogs?
When bleeding occurs on the external parts of a dog's body, we can quickly take precautions and start treatment processes. However, unfortunately, bleeding does not always occur on the external part of the body; Internal bleeding in dogs can occur in many different organs and can manifest with…

When bleeding occurs on the external parts of a dog's body, we can quickly take precautions and start treatment processes. However, unfortunately, bleeding does not always occur on the external part of the body; Internal bleeding in dogs can occur in many different organs and can manifest with different symptoms depending on the affected organ. In this article, you can find information about internal bleeding in dogs and its symptoms. What Causes Internal Bleeding in Dogs? The most common cause of internal bleeding in dogs, especially those that are not very old, is trauma. For example, after a car accident, there may not be any physically observable bleeding in dogs, but internal organs may be damaged, or hitting their heads can cause bleeding in the internal organs. When internal bleeding in dogs is minimal, it causes a self-limiting effect because the blood clots, but when the bleeding is excessive, clotting may not be able to stop the bleeding. In some conditions that cause clotting problems in dogs, this protective reaction provided by clotting may not be activated. The consequences of anticoagulant rat poison are sufficient to exemplify this situation. Even without trauma, poisoning can cause bleeding in the intestines, abdominal region, and subcutaneous tissue in dogs. The causes of internal bleeding in dogs can vary with age. The most common and significant cause of internal bleeding in older dogs is cancer. Among cancers, hemangiosarcoma is the most frequent cause of internal bleeding. Tumors composed of blood vessel cells are usually found in the spleen, liver, and heart. Less commonly, they can be diagnosed in any organ and even the skin. Scientific studies have shown that when internal bleeding occurs in a dog's abdomen, there is an 85% chance that it is cancer-related. To elaborate on the causes of internal bleeding in dogs, it is possible to mention various situations such as trauma to the body, stomach problems, the presence of ovarian cysts in female dogs, liver diseases, malignant tumors, traffic accidents, medications, bone fractures, and damage to internal organs. What are the Symptoms of Internal Bleeding in Dogs?
What Causes Internal Bleeding in Dogs?
In dogs, especially those not very old, the most common cause of internal bleeding is trauma. For example, after a car accident, there may be no physically observable bleeding in dogs, but internal organs may be damaged, or hitting their head can cause internal bleeding. When internal bleeding in dogs is minimal, it causes a self-limiting effect because the blood clots, but when the bleeding is excessive, clotting may not be able to stop the bleeding. In some conditions that cause clotting problems in dogs, this protective reaction provided by clotting may not be activated. The consequences caused by anticoagulant rat poison are sufficient to exemplify this situation. Even without trauma, poisoning can cause bleeding in the intestines, abdominal region, and subcutaneous tissue in dogs. The causes of internal bleeding in dogs may differ with age. The most common and important cause of internal bleeding in older dogs is cancer. Among cancers, hemangiosarcoma is the most frequent type of cancer that causes internal bleeding. Tumors composed of blood vessel cells are commonly found in the spleen, liver, and heart. Less commonly, they can be diagnosed in any organ and even the skin. Scientific studies have shown that when internal bleeding occurs in a dog's abdomen, there is an 85% chance that it is cancer-related. To detail the causes of internal bleeding in dogs, we can mention various conditions such as trauma to the body, stomach problems, ovarian cysts in female dogs, liver diseases, malignant tumors, traffic accidents, medications, bone fractures, and damage to internal organs.

What are the Symptoms of Internal Bleeding in Dogs?
Signs of internal bleeding in dogs can vary depending on the organ affected and the cause of the bleeding. The most common and frequently observed signs of internal bleeding in dogs can be listed as follows:
- Ongoing and severe internal bleeding can cause a decrease in red blood cells in dogs, resulting in a pale appearance. This symptom can be easily noticed by veterinarians. However, it is known that in the early stages, internal bleeding may not cause paleness because the spleen contracts and sends more red blood cells into the bloodstream. Therefore, it is important to take dogs that have suffered trauma to veterinarians early so that internal bleeding can be detected in dogs with simple blood tests.
- An increase in heart rate, also called tachycardia, can occur as a sign of internal bleeding in dogs. A decrease in the amount of blood circulating can create a need for the heart to beat faster to pump more blood to the body. An increased pulse rate is also important in raising suspicion of gastric bleeding in dogs. Gastric bleeding in dogs usually occurs as a result of trauma to the abdominal area or stomach diseases. Vomiting can be stated as the most prominent clinical sign among the symptoms of stomach diseases. The duration of vomiting, the frequency of vomiting, and the content of vomiting in dogs are distinctive variables that can help understand the problem in the stomach; they should be checked. One of the symptoms of internal bleeding in dogs is collapse, which occurs if the problem progresses. The decrease in the amount of blood in circulation can cause blood not to reach the brain and lungs. As mentioned earlier, the symptoms of internal bleeding in dogs can vary depending on the body region where it occurs. Therefore, it will be beneficial to know the organ-based symptoms.
- One of the symptoms of internal bleeding in dogs is collapse, which occurs if the problem progresses. A decrease in the amount of blood circulating can prevent blood from reaching the brain and lungs.
As mentioned earlier, the symptoms of internal bleeding in dogs can vary depending on the body region where it occurs. Therefore, it will be beneficial to know the organ-based symptoms. Internal bleeding in dogs can occur in different organs. For example, the symptoms of eye bleeding may be less noticeable compared to the symptoms resulting from bleeding in other organs, but it can become the source of more permanent problems. Although eye bleeding does not cause a decrease in circulation throughout the body, it can become a cause of blindness in dogs if the treatment process is not started quickly and effectively. Therefore, the health of dogs should be closely monitored; the symptoms of internal bleeding in dogs can range from mild to severe, and the symptoms may vary depending on both the cause and the area where it occurs. Contacting veterinarians when encountering a situation different from the usual can mean saving the lives of our friends.
Brain Hemorrhage in Dogs and Symptoms of Brain Hemorrhage in Dogs
Hemorrhages occurring inside the skull of dogs can be caused by trauma or tumors. Since the brain is located in a limited space within the skull, if a brain hemorrhage occurs in dogs, blood will accumulate in the skull and affect the functions controlled by the affected part of the brain. This causes a varied effect on the symptoms of brain hemorrhage in dogs. Circling while walking, difficulty walking, dragging of limbs, behavioral changes, lethargy, inability to fix gaze, seizures, loss of consciousness, and tremors may be among the symptoms of brain hemorrhage in dogs.
Intestinal Bleeding in Dogs and Symptoms of Intestinal Bleeding in Dogs
Bleeding in the intestines of dogs leads to digestive system problems. Vomiting, blood in the vomit, and darkening of stool color are the most common symptoms.
Hemoabdomen in Dogs and Symptoms of Hemoabdomen in Dogs
There can be many different reasons for bleeding in the abdominal area of dogs. Internal bleeding in dogs can start as a result of trauma to the abdominal area, rodenticide poisoning, or tumors in organs such as the spleen and liver. In case of serious bleeding in the abdominal area, abdominal swelling is the most prominent symptom in dogs.

Lung Bleeding in Dogs and Symptoms of Lung Bleeding in Dogs
Since the lungs are respiratory system organs, when internal bleeding occurs in the lungs in dogs, symptoms such as difficulty breathing and coughing up blood can be expected. If internal bleeding occurs outside the lungs but in the chest area, similar symptoms may be observed. In such a scenario, difficulty breathing, cyanosis of the gums due to oxygen deprivation, immobility, etc., may occur because the lungs are prevented from expanding. Internal bleeding in dogs can also occur in different organs. For example, the symptoms of eye bleeding may be less noticeable compared to bleeding in other organs, but it can still be the source of more permanent problems. Although eye bleeding does not cause a decrease in circulation throughout the body, it can lead to blindness in dogs if the treatment process is not started quickly and effectively. Therefore, the health of dogs should be closely monitored; the symptoms of internal bleeding in dogs can range from mild to severe, and the symptoms may vary depending on both the cause and the area where it occurs. Contacting a veterinarian when encountering a situation different from usual can mean saving our friends' lives.
Internal bleeding in dogs can occur in different organs. For example, the symptoms of eye bleeding may be less noticeable compared to bleeding in other organs, but it can still be the source of more permanent problems. Although eye bleeding does not cause a decrease in circulation throughout the body, it can lead to blindness in dogs if the treatment process is not started quickly and effectively. Therefore, the health of dogs should be closely monitored; the symptoms of internal bleeding in dogs can range from mild to severe, and the symptoms may vary depending on both the cause and the area where it occurs. Contacting a veterinarian when encountering a situation different from the usual can mean saving our friends' lives.
Treatment of Internal Bleeding in Dogs
Treatment of internal bleeding in dogs is determined according to variables such as the location of the bleeding, the cause of the bleeding, and the symptoms observed in the dog. It is important to provide veterinarians with details such as the symptoms experienced by the dog, when the symptoms started to appear, and what situations may have caused the symptoms to occur. The first stage and the most basic goal in the treatment of internal bleeding in dogs is to stop the bleeding. After determining where the bleeding occurred, surgical intervention may be necessary in cases where it is needed to stop the bleeding. Therefore, it is necessary to contact a veterinarian immediately after any of the signs of internal bleeding are observed in dogs.



