What steady growth looks and feels like
Healthy growth is unglamorous: the numbers climb in a fairly straight line, the kitten's body fills out evenly, and her abilities keep pace, with stronger movement, longer play and a growing appetite that matches her size. Run your hands over her regularly so your fingers learn her normal. You should be able to feel ribs with gentle pressure under a thin layer, see a slight waist from above as she gets older, and feel muscle developing in the hind legs as jumping and climbing arrive. Compare her mainly to her own previous weeks. Litter comparisons are useful for spotting a kitten being outcompeted at the bowl, but the smallest kitten in a litter can be growing perfectly at her own rate.
Weigh properly, or the numbers mislead
Most false alarms about growth come from sloppy weighing. Use the same scale each time, ideally a kitchen scale with a shallow bowl or box for a small kitten, weigh at the same point in the day, and write the figure down immediately rather than trusting memory. A kitten weighed after a large meal and then before one can appear to stall or even lose ground that she has not. Plot the weights where you can see the line, on paper or in your records, because the eye reads a trend from a list of numbers far better than from four separate memories of roughly increasing figures.
Signs the rate is not healthy
The pattern that matters is a break in the trend. A week with no gain, any actual loss, or a kitten who feels bonier while her littermates fill out all deserve attention, starting with how much she is truly eating and whether she is being pushed aside at meals. Other signs that growth trouble may have a medical side include persistent loose stools, a pot-bellied look with thin limbs, dull coat, low energy, or appetite that fades instead of growing with her. Kittens have small reserves, so do not watch a flat trend for several weeks to see what happens; raise it at the next visit at the latest, and sooner if appetite or energy has dropped alongside it.
Feeding is the first variable to check
Before assuming illness, audit the food story honestly. Is she on a food formulated for growth, offered often enough for a small stomach, and actually finishing her portion rather than being displaced by a bolder kitten or distracted mid-meal? Has a recent food change coincided with the stall, or is a fussy phase being filled with treats that blunt her appetite for meals? Adjust one variable at a time and give it a week, weighing as you go, so you know what worked. If careful feeding changes do not restart the climb, the next step is a veterinary check with your weight records in hand, since the trend you bring is often the most useful evidence in the room.
A record that makes the trend obvious
Growth questions are answered by sequences, not snapshots, so keep the weights where they accumulate into a visible line and travel with the kitten. Note food changes beside the weights, because a stall explained by a change you made is a different conversation from an unexplained one. KinsLe Pet Passport keeps those weigh-ins and food notes together with the rest of your kitten's records in one portable packet, ready for any visit where her growth is the topic.