Set up a route, so nothing gets skipped
A skin check works when it follows the same route every time: head, neck and shoulders, down the back in sections, each flank, the belly, the legs and paws, and finally the tail and its base. Part the coat with your fingers against the direction of growth as you go, because most of what you are looking for sits at skin level under a perfectly normal-looking surface — doubly true in a longhaired cat, where a mat can roof over a sore spot for weeks. Work in good light, keep sessions short and pleasant, and stop for a break if she has had enough; a check done weekly in two calm minutes beats a monthly wrestling match.
What healthy looks like, so you can spot the rest
Healthy skin is pale, supple and clean, with the coat lying evenly over it and no odour. A small amount of loose hair and a few flakes in a shedding season are unremarkable. What you are screening for is change and concentration: a patch where the coat has thinned or gone, redness or a rash in one area, scabs or crusting, greasy or flaky build-up along the back, black specks that do not brush away, and any spot she flinches from or turns to lick the moment you touch it. Behind the ears, the groin, the armpits and the base of the tail deserve a slower look, because they are warm, thin-skinned places where problems like to start.
What your fingers find that your eyes miss
Run your fingertips over the skin ahead of the brush, feeling rather than looking. Small lumps and bumps, attached ticks that read as a tiny firm bead, tender places, and the dense felted start of a mat close against the skin are all easier to detect by touch. Note the size and position of anything you find — pea-sized, left flank, say — because a lump's behaviour over time matters more than its presence on one day. Old cats in particular collect innocent fatty lumps, and the only way to know one is innocent is to have noticed when it appeared and whether it changes.
Reading the common findings
Flea dirt is the classic grooming discovery: black grit in the coat, especially at the tail base. Drop a few specks on damp white tissue — if they dissolve into reddish-brown smears, that is flea dirt rather than ordinary dust. Dry white flakes scattered through the coat are often just dander, but flakes that seem to move on their own, heavy scaling with itchiness, or symmetrical hair loss are findings for the vet, not the brush. Red, moist, angry patches, anything that oozes, and broken skin under a mat you have lifted all count as skin that needs professional eyes. Resist the urge to squeeze, pick or apply anything of your own in the meantime.
How often, and when to escalate
For most cats, a finger-and-eye check folded into weekly grooming is enough; longhairs and cats who go outdoors earn a twice-weekly once-over. Book a vet appointment if you find a lump that grows, changes or appears suddenly in an older cat, any sore that is not healing, patches of hair loss with redness, or a cat who is scratching, licking or biting at one area persistently — those are signs with causes a vet should identify rather than symptoms to groom around. Recording each session in her KinsLe Care Teams duties, with the completed check marked and timestamped, turns these small observations into a proper history, so whoever grooms her next knows exactly what was there last time.