Thyroidectomy is a procedure used to treat diseases affecting the thyroid glands, which are in the neck and play an important role in regulating metabolism. The most common indication for surgery is hyperthyroidism in cats, although it may also be recommended for dogs with thyroid tumours.
In cats, hyperthyroidism is usually caused by benign enlargement of one or both thyroid glands, leading to excessive production of thyroid hormones. Because both glands are often affected, surgery may sometimes involve treatment on both sides. In dogs, thyroid disease more often involves tumours, which may be benign or malignant.
These conditions can lead to a range of clinical signs, including:
Weight loss despite a normal or increased appetite
Increased thirst and urination
Hyperactivity or restlessness (particularly in cats)
Poor coat condition
Increased heart rate
A palpable lump in the neck (in some cases)
In cats, untreated hyperthyroidism can lead to complications such as high blood pressure, heart disease and organ damage over time. Early diagnosis and appropriate treatment are important to manage symptoms and improve long-term health.
In cats, hyperthyroidism can also be managed by alternative means, including long-term medication and radioactive iodine therapy. Your vet will help you choose the most appropriate option based on your cat’s individual condition and overall health.
Surgical Management
Surgery is an effective treatment option for thyroid disease in selected patients and removes the need for daily medication. A thyroidectomy involves removal of the affected thyroid gland and may be performed on one side (unilateral) or both sides (bilateral), depending on the condition. Surgical techniques are used to preserve the parathyroid glands where possible and help reduce the risk of complications.
The most appropriate surgical approach will depend on your pet’s diagnosis, overall health and whether one or both glands are affected.
We offer thyroidectomy at Animal Trust for a fixed cost of £719*, which includes up to 2 nights post-operative hospitalisation, pain relief, antibiotics (if required), and pre-operative blood tests.
Thyroidectomy: removal of the affected thyroid gland(s), performed on one or both sides depending on the condition, with care to preserve surrounding structures.
Preservation of parathyroid glands: these small glands regulate calcium levels and are carefully protected where possible, particularly where surgery involves both thyroid glands.
* Important: The price quoted represents a single surgical procedure. Some patients may relapse into a hyperthyroid state; this can happen years post operatively. Should a second surgical procedure be a recommended course of treatment it would be charged at the standard surgical price.
Post-Operative Care for Thyroidectomy Surgery
Post-operative care is important for a smooth recovery following thyroidectomy. Your pet will require monitoring and supportive care to manage pain and reduce the risk of complications.
Hospitalisation: Some patients may require hospitalisation for 24–48 hours following surgery. Up to 48hrs post-operative hospitalisation is included in the surgery fee. Hospitalisation allows close monitoring, particularly of calcium levels, which can occasionally be affected after thyroid gland removal.
Pain management: Pain relief is provided to keep your pet comfortable during recovery, with medication continued at home as needed.
Activity restriction: Activity should be limited for 10–14 days to allow healing. Jumping, running or strenuous activity should be avoided during this time.
Wound care: The surgical site should be kept clean and dry, and checked daily for any signs of redness, swelling or discharge.
Monitoring: Owners should monitor for signs such as lethargy, reduced appetite, vomiting, muscle twitching or restlessness, and report any concerns promptly.
Follow-up care: Patients are usually reviewed 7–10 days after surgery to assess healing and, if required, remove any sutures. Further checks may be recommended depending on the underlying condition. Thyroid levels may be measured 2-6 weeks post operatively to confirm surgical success.
