You've found a stray kitten โ€” what should you do? This question crosses the minds of thousands of people every year: according to estimates from leading animal welfare organisations, more than 40,000 cats are abandoned annually in Italy alone, many of them kittens just a few weeks old. Acting quickly and with the right knowledge can mean the difference between life and death for these defenceless little ones.

How to estimate the age of a found kitten

The first thing to assess when you find a kitten on the street is its approximate age, because the care required varies dramatically during the first weeks of life. There are clear guidelines that can help you make this judgement even without veterinary experience.

Body weight and physical development

Weight is the most reliable indicator for young kittens. A newborn kitten weighs around 85โ€“120 grams and gains an average of 10โ€“15 grams per day when healthy. Here is a quick reference table:

AgeAverage weightCharacteristics
0โ€“7 days85โ€“140 gUmbilical cord present or just fallen off, eyes closed
1โ€“2 weeks140โ€“250 gEyes beginning to open (days 7โ€“14)
3 weeks250โ€“350 gEyes fully open, beginning to walk
4 weeks350โ€“450 gBaby teeth emerging, better coordination
8 weeks800โ€“1,000 gFully weaned, complete deciduous dentition

If you don't have scales, look at the proportions: a kitten that fits in the palm of your hand is probably under 3 weeks old, while one the size of a grapefruit is closer to 6โ€“8 weeks.

Eyes and visual development

The eyes are a precise developmental marker. Kittens are born with their eyelids fused shut and begin to open them between day 7 and day 14 of life. Full opening happens gradually over 2โ€“3 days. If the eyes are still closed, you are dealing with a newborn that needs immediate intensive care. Eye colour, however, is not a useful indicator: all kittens are born with blue-grey eyes, and the permanent colour does not develop until after 6โ€“7 weeks.

Dentition and oral development

Baby teeth begin to emerge at around three weeks of age: the incisors appear first (days 14โ€“21), followed by the canines (days 21โ€“28) and the premolars (days 28โ€“42). A kitten with no teeth at all is therefore under 2 weeks old. The complete deciduous dentition (26 teeth) is present by 8 weeks, and the permanent teeth begin to replace them from the 3rdโ€“4th month onwards. Examine the mouth gently by lifting the upper lip with a clean finger.

First aid: the immediate steps to take

Once you have estimated the kitten's age, the priority is to stabilise it before transporting it to the vet. Orphaned kittens face two critical emergencies: hypothermia and dehydration, both of which can be fatal within a matter of hours.

Restoring body temperature

Kittens under 4 weeks cannot regulate their own body temperature, and their ideal ambient temperature is 29โ€“32 ยฐC. A hypothermic kitten (below 35 ยฐC) cannot digest food and risks cardiac arrest. Wrap the kitten immediately in a soft towel or fleece blanket and hold it against your body. You can prepare a warm-water bottle (not boiling โ€” maximum 38โ€“40 ยฐC) wrapped in a cloth and place it beside the kitten, never in direct contact. Alternatively, fill a plastic bottle with lukewarm water. Warming must be gradual: allow 30โ€“60 minutes to bring the temperature back up to 37โ€“38 ยฐC. Do not offer food to a kitten that feels cold to the touch.

Assessing and treating dehydration

Dehydration is the second leading cause of death in abandoned kittens. Test the skin on the back of the neck: pinch it gently and observe how long it takes to flatten again. If it takes more than 2 seconds, the kitten is dehydrated. Other signs include dry, tacky gums, sunken eyes and lethargy. For mild to moderate dehydration, you can offer small amounts of paediatric oral rehydration solution (such as Pedialyte, available at pharmacies for โ‚ฌ8โ€“12) using a dropper: 1โ€“2 ml every 30 minutes. Never give cow's milk, which causes potentially fatal diarrhoea in kittens. Severe dehydration requires urgent subcutaneous fluid therapy from a vet.

Basic cleaning and hygiene

If the kitten is dirty, clean it gently with a warm damp cloth, focusing on the anal and genital area. Kittens under 3 weeks do not urinate or defecate spontaneously โ€” the mother stimulates them by licking. You need to replicate this reflex by gently massaging the perineal area with a moist cotton pad after every feed. Urine should be pale yellow; stools should be brownish-yellow and soft. Abnormal colours or an absence of elimination require immediate veterinary attention.

Vet visit within 24 hours: what to expect

Even if the kitten appears to be in good condition, a veterinary check-up within 24 hours of finding it is non-negotiable. Kittens can deteriorate rapidly and may have vulnerabilities that are invisible to the untrained eye.

Routine examinations and screening

The vet will carry out a full physical examination, assessing weight, temperature, hydration, mucous membranes, cardiopulmonary auscultation and abdominal palpation. They will most likely recommend a combined FIV/FeLV test (โ‚ฌ15โ€“25), which is essential because these viruses can be transmitted from the mother and have no cure. A faecal examination (โ‚ฌ12โ€“18) will identify intestinal parasites, which are present in 70โ€“80% of stray kittens. In severely weakened kittens, a blood sample may be needed to assess blood glucose, protein levels and organ function (โ‚ฌ40โ€“60).

Personalised nutritional plan

The vet will prescribe a specific kitten milk replacer (such as Royal Canin Babycat Milk or Beaphar Kitty Milk, โ‚ฌ15โ€“25 per 200 g), with precise dosages based on the kitten's weight and age. Kittens under 4 weeks need feeding every 2โ€“3 hours, including through the night. After 4 weeks, the intervals extend to 4โ€“6 hours and gradual weaning begins with kitten mousse. The vet will provide a detailed schedule: a 2-week-old kitten weighing 200 g needs approximately 32 ml of milk per day, divided into 8 feeds of 4 ml each.

Vaccination schedule and deworming

The cat vaccination programme begins at 6โ€“8 weeks with the trivalent vaccine (rhinotracheitis, calicivirus, panleukopenia), followed by boosters every 3โ€“4 weeks until 16 weeks of age. Deworming starts as early as 3 weeks and is repeated every 2 weeks until 3 months of age, then monthly until 6 months. The average cost for the full vaccination course is around โ‚ฌ120โ€“180, while each deworming treatment costs โ‚ฌ8โ€“15.

Checking for a microchip and handling abandonment

Before treating the kitten as permanently orphaned, it is essential to rule out the possibility that it belongs to someone or that the mother is nearby.

Microchip check and owner search

Even kittens can be microchipped (although this is rare under 8 weeks of age). The vet will carry out a free scan with a universal reader. If a microchip is detected, the regional feline registry will identify the owner, who will then be contacted. At the same time, report the find to local shelters, post photos in local Facebook groups, and check whether anyone has reported a missing cat. Leave the kitten in the area for 1โ€“2 hours (safely, under observation) to see whether the mother returns: mother cats often move their kittens, and an isolated kitten may have been temporarily left behind.

Reporting abandonment and legal protection

Abandoning animals is a criminal offence in Italy (Article 727 of the Penal Code), punishable by up to one year's imprisonment or a fine of โ‚ฌ1,000 to โ‚ฌ10,000. If you have witnesses or evidence (security cameras, videos), file a report with the Carabinieri, the Police or the Forestry Guard. The Local Police can also carry out checks in the area. Even without identifying the offender, filing a report creates a useful record for statistics and prevention policies.

Temporary fostering and responsible adoption

If you decide to keep the kitten temporarily, bear in mind that monthly costs (food, litter, veterinary care) run to around โ‚ฌ50โ€“80 for a kitten. Many organisations offer support in the form of milk replacer, feeding bottles and free consultations. For permanent adoption, consider carefully: a cat can live 15โ€“20 years and requires a significant financial commitment (โ‚ฌ700โ€“1,200 per year) as well as emotional investment. Reputable organisations carry out a pre-adoption process involving a questionnaire, a home visit and a contract requiring compulsory neutering at 6โ€“8 months. The adoption contribution ranges from โ‚ฌ50 to โ‚ฌ150 and partially covers the cost of vaccinations and microchipping.

Feeding and care in the first weeks

Raising an orphaned kitten takes dedication and precision, but with the right protocol the survival rate exceeds 85%.

Bottle-feeding technique

Use feeding bottles designed for kittens (โ‚ฌ5โ€“8) with a soft teat and a small hole. The kitten should suckle actively โ€” never force feed it. Hold it in a prone position (belly down) with its head slightly raised, never on its back as you would a human baby (risk of aspiration pneumonia). The milk should be warm (37โ€“38 ยฐC); test it on your wrist. A feed lasts 5โ€“10 minutes; if the kitten falls asleep or refuses, do not insist. After each feed, hold it upright for 2โ€“3 minutes to encourage burping, then stimulate elimination.

Home environment and thermoregulation

Set up a nest in a cardboard box lined with soft blankets, away from draughts and loud noises. Use an infrared heat lamp (โ‚ฌ15โ€“30) positioned 50โ€“60 cm away, leaving half the box cooler so the kitten can self-regulate. Maintain an ambient temperature of 24โ€“27 ยฐC during the first 2 weeks, and 21โ€“24 ยฐC from the third week onwards. Change the bedding frequently to prevent skin infections.

Monitoring growth and warning signs

Weigh the kitten at the same time every day: it should gain 50โ€“100 g per week. Weight loss, stagnation or symptoms such as persistent diarrhoea, vomiting, lethargy, refusal to eat, breathing difficulties or purulent eye discharge all require urgent veterinary attention. Keep a diary recording weight, amount of milk consumed, elimination frequency and behaviour โ€” this will be invaluable for your vet.

Socialisation and behavioural development

As well as physical survival, it is essential to support balanced psychological development in order to prevent future behavioural problems.

Sensitive period and imprinting

The first 2โ€“7 weeks make up the sensitive period for feline socialisation. Orphaned kittens miss out on the maternal guidance that teaches bite inhibition, litter box use and feline communication. Compensate by handling the kitten gently every day (5โ€“10 minutes, 3โ€“4 times a day), gradually exposing it to household sounds, different people, and โ€” after vaccinations โ€” ideally to well-adjusted adult cats. Avoid playing with your hands or feet: always use toys to prevent predatory aggression towards people.

Introducing the litter box

From the third week, when the kitten begins to move around independently, place a low-sided litter tray (even a plant pot saucer works well) filled with fine clumping litter. After manual stimulation, place the kitten in the tray and let it sniff and dig. Most kittens instinctively understand the concept within 4โ€“5 weeks. Use unscented litter and change it frequently: young kittens are fastidious and may refuse a dirty tray.

Weaning and dietary transition

Weaning begins at 3โ€“4 weeks with kitten mousse (Royal Canin Mother&Babycat, Almo Nature Kitten) offered in shallow bowls. Initially the kitten will walk through it โ€” this is perfectly normal. Gradually reduce the milk replacer over 2โ€“3 weeks. By 8 weeks the kitten should be eating solid food only, with 4 meals a day. Choose kitten-specific dry food with a minimum of 35% protein and 18โ€“20% fat, following AAFCO growth guidelines.

Frequently asked questions

Can I give cow's milk to a kitten I've found on the street?

Absolutely not. Cow's milk contains lactose at concentrations that kittens cannot digest, causing severe diarrhoea and potentially fatal dehydration. Even lactose-free milk does not have the right nutritional profile: it lacks the essential proteins, fats and taurine that kittens need. Use only a kitten milk replacer, or โ€” in an absolute emergency before you can reach a vet โ€” a temporary solution of warm water with a small pinch of sugar to prevent hypoglycaemia.

How much does it cost to raise an orphaned kitten through to adoption?

Costs vary depending on the kitten's age at rescue and its health condition. For a kitten found at 2โ€“3 weeks of age and raised to 12 weeks (the minimum adoption age), you can expect to spend: milk replacer โ‚ฌ40โ€“60, veterinary visits โ‚ฌ80โ€“120, vaccinations โ‚ฌ120โ€“180, deworming โ‚ฌ30โ€“50, microchip โ‚ฌ25โ€“35, weaning food โ‚ฌ30โ€“40, litter and accessories โ‚ฌ40โ€“60. Average total: โ‚ฌ365โ€“545. Organisations may offer financial support or supplies, reducing your personal outlay by 40โ€“60%.

When can a kitten be introduced to other cats in the household?

Introductions require care and precise timing. Keep the kitten in quarantine until the full vaccination course is complete (16 weeks) and FIV/FeLV tests are negative, to protect the resident cats from infectious diseases. Even after that, the introduction should be gradual: 7โ€“10 days of separation with scent swapping (blankets, toys), then visual contact through a door, followed by short supervised meetings that are progressively extended. Adult cats may accept kittens more readily than other adults, but patience is always essential.

How do I know if a kitten needs urgent veterinary care?

Some signs require immediate attention (within 1โ€“2 hours): breathing difficulty with open mouth, white or blue gums, body temperature below 35 ยฐC or above 40 ยฐC, convulsions, obvious trauma, bleeding, inability to stand, vomiting or diarrhoea with blood, no urination for more than 12 hours, complete refusal to eat for more than 6 hours in kittens under 4 weeks. If you notice any of these symptoms, call your vet immediately or go to the nearest emergency veterinary clinic, even at night.

The responsibility and reward of rescue

Saving an orphaned kitten is an act of extraordinary generosity that demands real commitment, but brings immense satisfaction in return. Every year, thousands of volunteers dedicate sleepless nights, financial resources and unconditional love to these tiny survivors, with success rates that continue to rise thanks to the wider availability of evidence-based veterinary knowledge. Remember that you are not alone: vets, organisations and online communities offer ongoing support. Now you know what to do when you find a stray kitten: act promptly, trust the professionals, and prepare yourself for an experience that will change your life as much as it changes the life of the little cat you have rescued.

To explore other aspects of feline health, read our complete guide to cat vaccinations and find out how much a cat should eat at each stage of growth to ensure optimal development.