The cost of radiation therapy for dogs varies widely depending on the type of tumor and treatment protocol, ranging from around $1,000 for palliative care to approximately $7,000 for curative treatment. We’ve compiled a comprehensive guide from a pet owner’s perspective, covering key cost factors, available hospitals in Korea, and how to utilize pet insurance.

| Item | Palliative treatment | Curative treatment (conventional) | Stereotactic radiation (SRS/SRT) |
|---|---|---|---|
| Main purpose | Relieve pain · bleeding | Tumor control · attempt cure | Precise targeted tumor removal |
| Total sessions | 4–6 sessions | 16–20 sessions | 1–5 sessions |
| Total cost range | 2–$3,000 | $4,000 to $9,000 | $4,000 to $6,000 |
| Number of general anesthesia sessions | 4–6 sessions | 16–20 sessions | 1–5 sessions |
| Main indications | Osteosarcoma pain, advanced tumors | Nasal tumors, brain tumors, oral tumors | Brain tumors, small solitary tumors |
Costs vary by hospital, equipment, and tumor location, and the estimate is finalized after CT simulation. This is an estimated range based on owner quote cases as of May 2026.

Key Points to Check Before Radiation Therapy
Radiation therapy requires general anesthesia for each session, so senior dogs with compromised heart, kidney, or liver function need a thorough anesthesia risk assessment first. Acute side effects like dry skin, redness, and hair loss are common as treatments accumulate, and late-onset complications such as cataracts or nerve damage may develop over time. While cost estimates are important, it’s essential to have a radiologist and oncologist evaluate whether your pet can safely tolerate the anesthesia and treatment burden.

Checkpoints Before Making a Treatment Decision
The expected effectiveness of radiation therapy varies depending on the tumor type, location, and the dog’s overall health. Even for nasal tumors, outcomes, prognosis, and the degree of normal tissue protection differ between stereotactic radiation and conventional fractionated radiation, with stereotactic radiation known to better spare surrounding tissues. Before making a decision, consult thoroughly with a veterinary oncologist to determine which protocol is most suitable for your dog’s specific tumor situation, what level of efficacy can be expected, and what potential side effects may occur.

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.
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[1] Kudnig & Séguin, Veterinary Surgical Oncology, 2nd Edition (Wiley-Blackwell, 2022) — Ch. Radiation Oncology Principles
[2] Snyder & Johnson, Canine and Feline Respiratory Medicine, 3rd Edition (Wiley-Blackwell, 2023) — Nasal Tumors
[3] Bryant & Tranquilli, Small Animal Anesthesia and Pain Management: A Color Handbook, 3rd Edition — Palliative Radiation Therapy (PRT) Protocols
[4] Withrow, Vail & Page, Withrow and MacEwen's Small Animal Clinical Oncology, 6th Edition — Radiation Therapy Principles