5-6 Weeks Old:
The Weaning Stage
At this age, kittens make the exciting slow transition onto solid foods.
You Should Know:
At this age, kittens begin the gradual transition from nursing to eating solid food through kitten-led weaning. This process is most successful when led by the kitten—not forced on a schedule. Mother cats continue nursing while their kittens explore solid foods at their own pace. It’s strongly advised to allow the kitten to supplementally nurse or bottle feed until eating successfully.
At this age, kittens are highly playful and curious. Play with littermates helps them develop coordination, confidence, and important social skills such as bite inhibition and communication. Providing safe toys and opportunities for gentle human interaction helps support healthy behavioral development.
Because their immune systems are still developing, kittens this age should be handled only with clean hands and protected from other animals and potential sources of infection. At this age, the Association of Shelter Veterinarians guidelines recommend for kittens to receive their first FVRCP vaccine.
At 5-6 weeks, kittens are becoming less dependent on their mother. If you find a kitten outdoors and are willing to foster them, this weaning age is an ideal time to take them in for socialization. If they’re already with their friendly mother in foster care, it’s a great idea to keep them together until adoption age. If they’re already with their unsocial mama in foster care, she can be spayed and returned as soon as they are weaned. Don’t forget to help the mama cat access sterilization to prevent future births.
At 5 weeks, the premolars (the sharp at the back of the mouth) have erupted.
Kittens have denim blue eyes at 5-6 weeks.
5 week old kittens are ready to start the weaning process.
5 week old kittens are becoming much more playful, and can bat at toys.
Week 5-6 Developmental Attributes
Stool and Urine:
Kittens are typically beginning to use the litter box by this age
They urinate every few hours and typically defecate about once per day
Stool should be solid; the color will transition from mustard yellow to brown as they wean onto solid food
Sleep:
Kittens this age still sleep for many hours a day but have wake periods filled with play and exploration
Movement:
Running short distances and changing direction quickly
Beginning to climb low objects and explore their surroundings
Play behavior including chasing, pouncing, wrestling, and batting at toys
Grooming:
Regularly grooming themselves and their littermates
Grooming behavior becomes more coordinated and deliberate
Body temperature:
100–101°F (37.8–38.3°C)
Week 5-6 Physical Attributes
Eyes:
Blue irises
Vision has significantly improved; can focus on and track objects and see from several feet away
Eye-paw coordination has improved significantly
Ears:
Ears fully upright and highly responsive
Ears are similar in shape and proportion to those of an adult cat
Teeth:
Incisors (tiny teeth at the front of the mouth) fully present
Canine teeth (four small fangs) erupting
Premolars (sharp teeth at the back of mouth) erupting
Claws:
Retracted when relaxed
Typical weight:
550-650g
Healthy weight gain:
At least 10-15g per day
Essential Supplies for a 4-5 Week Old Kitten
Wet kitten food
Dry kitten food
Shallow food dishes
Gram scale for weighing
Mesh playpen or plastic panel playpen
Kittens can be housed in a small playpen that allows enough space to roam and practice playing.
A cardboard cat food tray makes a perfect first litter box for a kitten.
How to Set Up Your Space for a 4-5 Week Old Kitten
By 4–5 weeks of age, kittens are much more mobile and curious. They are walking confidently and beginning to play, explore, and use the litter box. They are still far too small to roam freely in a home, but they benefit from having a safe space where they can move around, play, and continue developing their coordination.
In a playpen:
The ideal setup is a mesh playpen or plastic panel playpen.
Place a kitten-safe heat source in one corner, covered with a soft baby blanket. At this age kittens can usually tolerate normal room temperature, but providing a warm option allows them to rest comfortably if needed.
Provide a shallow litter box (a cardboard cat food tray works well) with kitten-safe litter.
In a bathroom:
A small bathroom can be appropriate for kittens this age, but be careful to ensure it is kitten-proofed. Keep the toilet lid shut and tuck in shower curtains so that they cannot be climbed. Ensure cabinets are closed and toxic chemicals are not accessible. Line the floor with blankets as tile can be too cold for kittens. Set up the space with all supplies listed above.
With a mama:
At this age, kittens will be exploring beyond the nesting box and exploring food and water with their mother. Give them a shallow litter box near the mama’s box.
Care Schedule: Every 6 Hours
At 5–6 weeks of age, kittens are learning how to eat solid food. Caregivers should sit with the kittens during meals to help ensure they are eating successfully. Some kittens may need encouragement, hand feeding, or spoon feeding at first. Continue allowing supplemental nursing with mom or bottle feeding until the kitten is reliably eating enough solid food and gaining weight. Always weigh the kitten after each meal to ensure they’re weaning successfully.
Beware of meat nursing! Many kittens look like they’re eating, but are actually nursing on the food—and can fail to eat sufficiently, leading to dehydration and malnutrition. For this reason, actively observing and supporting them is essential at this age.
Feed 4 times a day, every 6 hours. Remove uneaten wet food after about an hour to reduce the risk of bacterial exposure. Wet kitten food should be the primary diet, though kitten kibble can also be offered so kittens become familiar with both textures.
At 5-6 weeks, fresh water should always be available so kittens can learn to drink and stay hydrated.
Care Routine for a 5-6 Week Old Kitten
Wash your hands or put on clean gloves.
Young kittens still have immature immune systems and should be handled with clean hands.
Offer wet kitten food.
Place a small amount in a shallow dish and sit with the kitten while they explore and learn to eat. If they don’t understand it, place a small amount in their mouth using a hand or spoon. You may find that they are most successful when you hold the food right in front of their face for the first several feedings.
Allow supplemental bottle feeding.
Once the kitten has lost interest in the wet food, offer the bottle.
Weigh the kitten.
Record the weight in grams, along with the time of feeding. Healthy kittens should gain weight every day. If the kitten is losing weight, they may be too young to wean—scale them back to bottle feeding.
Clean the kitten.
Use a baby wipe or warm cloth to gently clean the kitten’s face if needed.
Place the kitten in the litter box.
Eating may prompt the kitten to need to use the litter box at this age.
Set an alarm for the next feeding in 6 hours.
Young kittens require frequent care, so setting alarms helps maintain a consistent feeding schedule.
