Why degus bathe in sand, and why hygiene matters
Degus keep their dense coats clean the desert way: they roll and thrash in fine sand, which lifts grease and loose hair out of the fur far better than any washing could, and a group will queue for the bath with obvious enthusiasm. But a shared bath is also a shared surface. Every degu who rolls in it leaves behind droppings, shed hair, skin cells and whatever was on their feet, and the next bather rolls in all of it. Left unsieved, shared sand quietly becomes the dirtiest item in the cage — the opposite of its purpose. The hygiene routine is simple and layered: sieve often, top up as needed, replace completely on a rhythm, and the bath stays a cleaning tool instead of a contamination point.
Sieving after every session
Once the group has finished and the bath comes out, shake it gently and pour the sand through a fine kitchen sieve or a dedicated sand scoop with slots, over a bin. Droppings, hay seeds, food husks and clumps of shed fur stay in the sieve; clean sand falls through. Sieving after every session rather than every few days matters because debris left in warm sand gets rolled deeper and broken smaller with each bath, until it is too fine to remove. If the sand has picked up a damp patch — a spilt drink or a degu using the bath as a toilet — lift that whole clumped section out rather than stirring it in, because damp bathing sand grows mould and loses its cleaning quality.
Topping up and replacing on a rhythm
Sieving and enthusiastic bathing both lower the sand level, and degus bathe poorly in a shallow skim — top the bath back up with fresh bathing sand so it stays deep enough to roll in properly. Topping up dilutes but never resets the batch, though, so the whole lot needs replacing completely on a regular cycle: every few weeks for an average group with daily sieving, and immediately if the sand smells stale even after sieving, stays clumpy, or looks grey and powdery-fine from breakdown. Replace the sand at once, and wash and dry the bath container before refilling, whenever any degu in the group has had a skin problem, mites or an infection, since the bath visits every coat in the group.
Sessions in, not a bath left in the cage
Offer the bath as a supervised session — in the cage or play area for a set stretch, then out again — rather than a permanent fixture. A bath that lives in the cage becomes a sleeping spot, a food store and, reliably, a toilet, all of which destroy its hygiene faster than any sieving schedule can rescue. Sessions also let you watch the bathing itself: every degu should roll eagerly. One who avoids the bath, scratches heavily afterwards or has thinning patches along the back is telling you something the sand cannot fix, and belongs on a vet list. Wash the empty bath container with hot water and let it dry fully before the sand goes back, since damp containers sour fresh sand quickly.
The right sand, and sharing the routine
Use proper bathing sand sold for chinchillas and degus — fine enough to work through the coat, coarse enough not to hang in the air as dust. Avoid the very fine bathing dusts, which irritate eyes and airways in a group rolling together, and never substitute play sand, garden sand or anything from a builder's bag, which can carry grit, sharp particles and contamination. Because the rhythm — sieve each session, top up weekly, full change on schedule — involves several small judgements, write it down where the whole household sees it. Recording each full sand change in KinsLe's Care Teams, stamped with the time it was done, stops the quiet drift where everyone assumes someone else changed the bath this month.