Buying a kitten: essential checks, common health signs and when to contact a vet

Bringing a kitten into your home is exciting, but it’s important to make careful choices before you pay or collect. Whether you’re adopting from a rescue or buying from a breeder, knowing what to look for and when to act helps protect the kitten’s welfare and reduces the chance of unexpected problems once they arrive.

Pre-purchase checks to make

• Ask about age: Kittens ideally remain with their mother until at least eight weeks old; many experts recommend a little longer. Confirm the date of birth and compare photos if you can.
• See the mother and littermates: Meeting the dam and siblings gives clues about early socialisation and the home environment where the kitten was raised.
• View the environment: A kitten raised in a household setting tends to be more accustomed to everyday noises and visitors than one kept in a very restricted or outdoor space.
• Request veterinary records: Ask for any records of vaccinations, worming, flea treatments and health checks. A reputable source will provide paperwork readily.
• Check microchipping and paperwork: Confirm microchip details, registration and any breeder or rehoming centre contact information.
• Observe behaviour: A confident, curious kitten that approaches or can be gently handled is usually better socialised than one that is extremely fearful or aggressive.

Common signs of ill health to watch for

When you meet a kitten, look and listen carefully. These signs can indicate disease or poor care:

• Persistent sneezing, coughing, noisy breathing or any difficulty breathing
• Runny or crusted eyes, discharge from the nose
• Loose stool, ongoing diarrhoea or vomiting
• Poor appetite or rapid weight loss
• Lethargy, collapse or reluctance to move
• Visible skin problems — hair loss, scabs, intense scratching
• Swollen joints, limping or signs of pain when handled
• Seizures or unusual neurological signs (staggering, disorientation)

Why you should act and what to do next

Some signs are mild and may only need monitoring or basic care, while others can be serious. If you spot anything concerning when viewing a kitten, ask the seller or rehoming centre for a full explanation and copies of vet records. You should not collect a kitten if urgent care is likely to be needed and the seller cannot demonstrate where it has received prompt veterinary attention.

If the kitten is already in your care and develops mild symptoms (e.g. a single episode of sneezing or a small loose stool), contact your veterinary practice for advice on monitoring and next steps. Keep the kitten warm, provide fresh water and avoid exposing them to other animals until you know the cause.

Serious red flags — contact a vet urgently

Contact a vet urgently if a kitten shows any of the following: difficulty breathing, collapse or unresponsiveness, repeated or severe vomiting, diarrhoea with blood, severe bleeding, seizures, extreme dehydration (dry gums, skin tenting), or an inability to stand. These signs can indicate life‑threatening conditions and need immediate professional assessment.

What a vet may discuss or check

At an appointment your vet will usually take a history (age, dietary changes, onset of signs, prior treatments), perform a physical examination and may recommend diagnostic tests such as faecal analysis, skin checks, blood tests, or imaging where needed. They will also discuss routine care: vaccination schedules, parasite prevention, neutering timing, microchipping and nutrition. The vet will explain treatment options and likely outcomes — this is not a diagnosis given here, but an outline of what to expect in a clinical assessment.

Practical questions to ask a breeder or rehoming centre

1. When was the kitten born and can you see a birth record or photos?
2. Can I meet the mother and littermates?
3. Where was the kitten raised — indoors, outdoors or in a pen?
4. What vaccinations, worming and flea treatments has the kitten had and can I have written records?
5. Has the kitten been microchipped and registered?
6. Are there any known health issues in the parents or the litter?
7. What food has the kitten been eating and what do you recommend for the first few weeks at home?

Preparing for the journey home and settling in

Before you bring a kitten home, make sure you have a quiet, warm space, a secure litter tray and kitten‑appropriate food, plus a scratching post and safe toys. Introduce the kitten slowly to new people and pets and keep routine predictable. If you have other animals, seek advice from your vet or rehoming centre on safe introductions.

If anything about a kitten’s health or origin worries you after purchase, contact the breeder or rehoming centre first and speak to a veterinary professional for advice. For urgent or severe signs, do not delay — seek immediate veterinary care.

Find a vet near you

Frequently asked questions

How old should a kitten be before leaving its mother?

Most kittens should stay with their dam until at least eight weeks of age to benefit from early social and nutritional development. Some vets and welfare bodies recommend waiting a little longer. Ask for the kitten’s date of birth and check records.

What paperwork should I receive when I collect a kitten?

Expect written evidence of vaccinations, parasite treatments, microchip details and any veterinary checks. Rescue centres and reputable breeders will also provide a history of the kitten’s upbringing and advice on ongoing care.

Is it safe to buy a kitten advertised online?

Online listings can be useful but carry risks. It’s harder to verify origin, health and welfare from photos alone. Always visit in person where possible, meet the kitten and its mother, and ask for full records before agreeing to buy.

When should I take my new kitten to the vet?

Arrange a veterinary check within a few days of bringing a kitten home, unless the breeder or rehoming centre has already arranged recent checks. Your vet will confirm general health, advise on vaccinations and parasite control, and answer questions about diet and care.

How can I tell if a kitten is well socialised?

Socialised kittens are usually curious, accept gentle handling, and can cope with everyday household sounds. Extreme fear or aggression may indicate poor early social exposure; ask the seller about how the kitten was raised and whether it has had regular gentle handling.