Signs of Spleen Tumors in Dogs

The spleen is a vital organ that protects the body against germs in the bloodstream, and filters platelets and worn-out red and white blood cells from the blood. Spleen tumors are a medical condition that affects larger dog breeds as they grow older. Spleen tumors are often indicative of another underlying canine health problem, like spleen or stomach cancer. Knowing the signs can help you get your dog treated closer to the onset of the condition, and alleviate the discomfort and pain associated with spleen tumors.

  1. Distended Belly

    • Spleen tumors cause abdominal distention, and your dog's belly may feel hard to the touch. You may hear your dog whimpering, because the condition is very painful. Your dog may experience difficulty lying down comfortably, or performing any activity without pain or discomfort. An enlarged spleen can affect your dog's appetite, and it may express little to no interest in food or eating. Due to the discomfort and lack of nutrients, your dog may act weak and lethargic.

    Change in Bathroom Habits

    • One of the prominent signs of spleen tumors is a change in bathroom behavior. For example, your dog may demonstrate an increased urgency to urinate, and his urine may develop a dark brown color due to the breakdown of red blood cells or related internal bleeding. Diarrhea and vomiting are other common symptoms associated with spleen tumors in dogs.

    Deteriorating Health

    • An enlarged spleen can cause spleen tumors to rupture and worsen a dog's health. Dogs may experience significant blood loss, which can cause paleness in the gums and an increased heart rate. Affected dogs appear very weak, and may faint or fall into a coma. According to the American College of Veterinary Surgeons, seizures can occur if the tumor spreads to the brain. Metastasis is the clinical term for tumor spread; this symptom can also affect the dog's lungs, abdominal organs and bones.