Three sizes means no single chart fits
Yes, keep a weight and growth log for your Xoloitzcuintli. This ancient Mexican breed is raised in toy, miniature, and standard sizes, and puppies do not always announce early which adult they will become, especially in litters bred toward a boundary between sizes. A generic breed chart can therefore mislead you twice, first by worrying you over a puppy who is simply heading for the smaller size, then by reassuring you about one whose growth has genuinely stalled. Your own log, started in the first weeks at home, draws the curve that actually belongs to your dog.
Hairless skin tells the truth, if you look
The hairless variety hides nothing: ribs, waist, and any new softness over the hips are visible in ordinary light, and the coated variety carries only a short, smooth jacket that conceals little more. That honesty is an advantage, but it tempts owners to skip the scale entirely and trust their eyes, and eyes adapt gradually to gradual change. Skin notes belong in this breed's log alongside weight, because a Xolo's skin reacts to sun, cold, diet, and adolescence, and a change in skin quality recorded beside a weight dip or an appetite note gives your vet a fuller picture than either entry alone. Warmth matters too: a hairless dog shivering through a cold spell burns energy a coated dog would not.
What to write while she is growing
Weigh your puppy on a small, consistent scale, since at toy and miniature sizes a kitchen-grade scale gives cleaner readings than standing on a bathroom scale holding her. Record weight, height at the shoulder, appetite, and a one-line condition note covering ribs, waist, and skin. Note whether she is a hairless or coated puppy, and log any adult teeth arriving or other milestones in the margin, because growth, appetite, and teething often move together in this breed. Photograph her standing in profile against the same background each month; with no coat to interfere, comparison photos for a Xolo are unusually precise.
Reading the curve without panic
Expect growth to arrive in pulses, with quiet weeks that mean nothing on their own. What matters is the shape across several entries: a puppy who eats keenly, plays hard, and holds her condition through a plateau is usually simply between pulses. If weight rises while the visible waist disappears, review treat habits first, because small dogs are easily overfed by amounts that look trivial on a spoon. If the curve climbs steeply and steadily toward the top of her expected size, that is information for feeding and for your vet, not a problem in itself, since her log exists precisely to show which size she is choosing to be.
When the record should reach the vet
Contact your veterinarian if a puppy's weight stalls across several entries while appetite also fades, if weight falls at any age without a clear cause, if skin problems and weight change arrive together, or if a small-size dog seems weak, chilled, or reluctant to eat. At toy and miniature sizes, reserves are small and change moves fast, so the dated log lets the vet judge speed rather than guess it. Bring the height entries too, because the relationship between height and weight is the clearest growth evidence you own.
A personal curve, honest skin notes, and consistent small-scale weigh-ins suit this breed better than any published chart, and filing the log in KinsLe's Pet Passport keeps your Xoloitzcuintli's growth record with her documents wherever they are needed.