The Siamese is one of the oldest, most recognisable, and most intensely characterful cat breeds in the world. Their sleek, angular wedge-shaped head, large pointed ears, striking almond-shaped blue eyes, and elegant pointed coat make them unmistakable. But the Siamese is defined as much by personality as by appearance: they are extraordinarily vocal, opinionated, social, and demanding cats that form intense bonds with their chosen people. Living with a Siamese is not like living with a typical cat — it is a genuine interactive relationship with a feline that has opinions about everything and will share them loudly.
Quick Facts
| Characteristic | Detail |
|---|---|
| Size | Medium (3–5 kg; lean and athletic) |
| Coat | Short, fine, point-coloured — minimal grooming needed |
| Lifespan | 10–15 years (some to 19+) |
| Temperament | Extremely vocal, demanding, affectionate, intelligent, loyal — “cat with a dog’s soul” |
| Good for quiet households? | No — Siamese are loud. This is not optional |
| Best companion arrangement | Ideally with another Siamese or Oriental breed — they need company |
| Kitten cost (UK 2026) | £650–£1,200 |
Health — Key Conditions
Amyloidosis
Amyloidosis is a rare but serious genetic condition where abnormal amyloid protein deposits accumulate in vital organs:
- Primarily affects the kidneys and liver — deposits gradually destroy organ tissue
- Mean age of diagnosis in Siamese: approximately 3.5 years (some as early as 1 year)
- Symptoms: excessive thirst/urination, weight loss, poor coat quality, jaundice (yellow gums/eyes), lethargy, dehydration
- Prognosis: once clinical signs appear, organ damage is typically advanced. No cure exists
- No widely available DNA test yet — research is ongoing. Ask breeders about amyloidosis history in their lines
Feline Asthma
Siamese cats have a significantly higher genetic predisposition to feline asthma:
- Chronic inflammation of the airways causing coughing, wheezing, and breathing difficulty
- Typical onset: 2–8 years
- Triggers: dust, pollen, mould, cigarette/e-cigarette smoke, aerosol sprays, scented litter
- Management: inhaled corticosteroids (via feline spacer device), bronchodilators, environmental trigger reduction
- No smoking of any kind in a household with a Siamese cat — this is not optional
Lymphoma and Cancer
Siamese cats have an elevated risk of certain cancers, particularly:
- Mediastinal lymphoma: cancer in the chest cavity, causing fluid accumulation and breathing difficulty
- Young Siamese (under 4 years) are at particular risk of histiocytic mast cell tumours
- Watch for: unexplained weight loss, reduced appetite, breathing changes, lethargy
PRA — Progressive Retinal Atrophy
Siamese carry a recessive form of PRA causing progressive vision loss. DNA test available — ask breeders for test results.
Megaesophagus
Rare but breed-associated: the oesophagus enlarges and weakens, preventing food from reaching the stomach normally. Symptoms: regurgitation (not vomiting), weight loss, aspiration pneumonia risk. Management: elevated feeding position, specific food consistency.
The Vocal Reality
This deserves its own section because it is the single most common reason Siamese cats are rehomed:
- Siamese cats are loud. They vocalise frequently, at volume, and with a distinctive low-pitched yowl that is unlike any other cat breed
- They “talk” to their owners about everything: food, attention, boredom, displeasure, affection, and topics known only to them
- They vocalise more when alone, when they want something, and during the night if they are not settled
- This is a breed trait — it cannot be trained out. If noise is a concern for you or your neighbours, a Siamese is not the right choice
- Many Siamese owners genuinely love the vocal interaction — it is one of the breed’s most endearing traits for the right person
FAQs
Should I get two Siamese cats?
Strongly recommended — yes. Siamese cats form intense social bonds and genuinely suffer from loneliness when left alone for extended periods. A pair of Siamese will play together, groom each other, and provide the companionship each needs. They are also less likely to develop behavioural problems (over-vocalisation, destructive behaviour) when they have a feline companion. Two Siamese together is paradoxically often easier than one alone.
Reviewed by Dr. Sarah Jenkins, MRCVS
Dr. Jenkins is a fully practicing veterinary surgeon in the UK with over 15 years of clinical experience in small animal medicine and canine behaviour. She reviews and verifies our health content to ensure medical accuracy.
