Blood diseases in dogs and cats
What is a blood disorder?
Blood disorders, or hematological diseases, are a group of pathologies that affect blood cells (red blood cells, white blood cells, platelets), bone marrow or coagulation factors. These conditions can have a variety of origins: infectious, immune, cancerous or hereditary.
These are usually serious illnesses that can occur suddenly and evolve rapidly, or progressively worsen, depending on their origin.
The diagnostic approach is essentially designed to understand and evaluate abnormalities and explore their potential causes.
Evocative clinical signs
Symptoms may be discreet or very marked, depending on the type of disease and its stage of development. Among the most frequent signs are :
- Unusual fatigue, effort intolerance, shortness of breath
- Pale mucous membranes (gums, conjunctivae, inside of sinews)
- Spontaneous or prolonged bleeding (gums, nose, urine, stools, vomiting, etc.)
- Fever, weight loss, enlarged lymph nodes
- Abnormal coloring of urine (hemoglobinuria)
- Neurological disorders (rare but possible)
How are they diagnosed?
Diagnosis is based on a number of additional tests designed to pinpoint the origin of the blood anomaly:
- Complete blood count (CBC): assesses red blood cell, white blood cell and platelet levels.
- Blood smear: observation of blood cells under the microscope to detect morphological abnormalities or the presence of blood parasites.
- Reticulocyte assay: Reticulocytes are very young red blood cells. Their quantification is used to assess bone marrow response to anemia.
- Coagulation tests: to investigate bleeding disorders.
- Serology or PCR: in case of suspected vector infection (ehrlichiosis, babesiosis, etc.).
- Bone marrow aspiration: essential in certain situations (suspected leukemia, aplasia, myelodysplasia).
- Medical imaging: ultrasound, X-ray or CT scan may be required to search for associated anomalies.
What are the most common hematological diseases?
In dogs and cats, these include :
- Anemias: hemorrhagic, hemolytic (autoimmune, toxic, infectious, parasitic) or central (marrow involvement).
- Thrombocytopenia: often immune, sometimes secondary to infection or autoimmune disease.
- Leukemias: chronic or acute cancers of blood cells.
- Lymphomas: although affecting lymphoid tissues, they are frequently accompanied by hematological abnormalities.
- Coagulation disorders: congenital (such as von Willebrand disease) or acquired.
How are these diseases treated?
Treatment depends on the cause identified:
- Supportive treatment: blood transfusions, infusion, oxygen therapy if necessary.
- Specific treatments:
- Corticosteroids or other immunomodulators in autoimmune or immune-mediated diseases
- Antibiotics or antiparasitics if infection is involved
- Chemotherapy for hematopoietic cancers
- Supplements (iron, vitamins) if associated deficiencies
- Blood transfusions: in the most severe cases, a blood transfusion can stabilize the animal and improve its condition while the cause of the blood disorder is investigated and treated.
- Specific treatments for digestive ulcer diseases causing chronic bleeding
- Regular follow-up: monitoring blood parameters, adjusting treatment, screening for complications.
A word about our approach
At the Agoravet clinic, we have a full range of technical equipment (haematological analyzers, advanced imaging, specialized examinations) for rapid, accurate diagnosis. Our experts work closely together to offer personalized care that respects your pet's well-being.
A blood bank has been set up to provide blood transfusions at very short notice. For more information on blood transfusions and donations, go to here