What a normal rabbit molt looks like
Rabbits replace their coats in a rolling pattern, often starting at the head or shoulders and moving backwards, and you can frequently see a distinct line where the longer old coat meets the shorter new growth. Loose fur comes away in your hand or the brush in soft tufts, and the skin revealed underneath is smooth, pale and clean, with short new fur already covering it — a molting rabbit is scruffy, never truly bald. The whole process takes a few weeks, happens most heavily around the change of seasons, and the rabbit's behaviour never changes: appetite, droppings and energy all carry on as normal.
Skin that tells a different story
Problem skin announces itself in the patches. Instead of a moving tide line you get defined bald areas where fur does not regrow, skin that is flaky, thickened, reddened or crusty, and sores where the rabbit has scratched itself raw. Thick white flakes that cling to the skin and seem to shift when you part the fur — the classic "walking dandruff" appearance — point to mites and need a vet, as do crusty ear edges, scaly patches on the nose or feet, and any lump or broken skin. Unlike a molt, these patches spread, worsen, and make the rabbit uncomfortable, restless or off its food.
The hands-on check during grooming
Molting rabbits need regular gentle grooming anyway, because swallowed loose fur is hard on a rabbit's gut, and grooming doubles as your inspection. Part the fur down to the skin in a few places — behind the ears, along the back, around the tail base — and look at the skin itself in good light rather than judging by the coat's surface. Run your fingers against the lie of the fur to feel for crusts, lumps or flakes your eyes missed. A healthy molt passes this check cleanly every time; anything rough, raised or sore does not.
Judging the pattern over a week
When you are genuinely unsure, time is the tiebreaker. A molt visibly progresses: the tide line moves, bare-looking areas fill with new growth, and a week later the rabbit simply looks further along. Skin problems either stay fixed in place or expand — the flaky patch is bigger, a second patch has appeared, the scratching has increased. Take a dated photo of any patch you are watching, from the same angle, every couple of days. Filling in means molt; spreading, crusting or a rabbit getting sorer means the vet should see it.
When molting season still deserves a vet visit
Book an appointment if you find bald patches with flaky or broken skin, fur coming away with crusts attached, persistent scratching or head-shaking, crusting inside or around the ears, or a rabbit whose appetite or droppings change alongside the coat. Also go if a "molt" drags on for months without completing — a coat that will not cycle properly can reflect other health issues worth ruling out. Bringing your dated photos of how the patches changed, kept together in KinsLe's Pet Passport with the rest of your rabbit's records, lets the vet see the pattern's direction at a glance instead of relying on a single snapshot.