11/07/2026
💜 November 7 is National Canine Lymphoma Awareness Day 💜
Canine lymphoma is a cancer of lymphocytes, white blood cells that help fight infection. It can affect lymph nodes and other parts of the body. One common sign is firm, painless swelling of the lymph nodes, often felt under the jaw, in front of the shoulders, or behind the knees. Other signs may include low energy, reduced appetite, weight loss, vomiting, diarrhea, increased thirst or urination, or difficulty breathing. These signs can have many causes, so a veterinarian should assess any concerning changes.
A veterinarian may use an exam, a needle sample or biopsy, blood tests, and imaging to confirm a diagnosis and learn how extensive it is. Chemotherapy is a common treatment; some dogs also receive other therapies or comfort-focused care. Many dogs tolerate chemotherapy well, which Den Herder Veterinary Hospital offers. Treatment plans and outcomes may vary.
Take a moment to gently check your dog for new or changing lumps, and keep up with regular veterinary visits. If you notice something unusual, contact us rather than waiting to see if it goes away.