The Siamese is one of the oldest and most recognisable cat breeds. They are generally long-lived and healthy, but have several breed-specific health concerns that owners should be aware of when budgeting for veterinary care.

Expected Annual Vet Costs

  • Routine preventative care: £100–£200
  • Total annual vet costs including illness/injury: £300–£600
  • Pet insurance: £10–£25/month
  • Typical lifespan: 15–20 years

Siamese are among the longest-lived cat breeds, which means a longer total period of veterinary expenditure even if annual costs are moderate. The average UK vet consultation is £62 (CMA data).

Common Health Issues

Amyloidosis is a serious condition where abnormal protein deposits damage the liver and kidneys. It is more common in Siamese and related breeds. Liver amyloidosis can cause sudden, severe illness. Treatment is supportive and can cost £500–£2,000 for acute episodes, with ongoing management.

Feline asthma and bronchial disease affects Siamese more frequently than other breeds. Diagnosis involves X-rays (£150–£300) and sometimes bronchoscopy. Ongoing treatment with inhaled corticosteroids via an AeroKat spacer costs £15–£30 per month plus the spacer device (around £30).

Convergent strabismus (cross-eyedness) is common but rarely requires treatment. It is a cosmetic trait linked to the breed's genetics.

Dental disease including gingivitis and tooth resorption is frequent in Siamese. Dental procedures under anaesthetic cost £300–£800.

Intestinal adenocarcinoma occurs at higher rates in Siamese than other breeds. Surgical removal costs £1,000–£3,000 at a referral centre.

Psychogenic alopecia (over-grooming from stress or anxiety) is common in this highly social breed. Investigation costs £200–£400, and treatment may require behavioural modification or anti-anxiety medication.

Insurance Recommendations

Lifetime cover with at least £4,000 per condition is recommended. Given their long lifespan, ensure premiums remain affordable as the cat ages. Premiums start at £10–£25 per month.

How to Save on Vet Costs

  • Written prescriptions: Save 40–70% on asthma and other medications from online pharmacies
  • Compare vet prices: Use VetCost to compare consultation fees near you
  • Dental care: Daily brushing can significantly reduce the frequency of expensive dental procedures
  • Stress reduction: Siamese need company and stimulation — preventing stress prevents stress-related conditions
  • Preventative care: Annual health checks and vaccinations catch problems early

Lifetime Veterinary Costs

Over a 15–20 year lifespan, expect £6,000–£14,000 in total vet costs. The long lifespan means costs accumulate even if annual expenses are moderate.

Last updated: March 2026. Sources: CMA provisional decision (October 2025), Siamese Cat Club, VetCost data.