Start the fancy rat file with variety, markings, and mischief
A fancy rat record opens with source, age, sex, arrival weight, and a description precise enough to pick him out of a group: variety, hood or cap markings, blaze, eye colour, and any tail kinks, with a solo photo. List every cagemate on the same page with matching descriptions. Rats live socially and are often examined, fed, and handled as a group, so individual identity notes are what stop a health concern being attached to the wrong animal at the clinic or by a covering sitter.
Make breathing notes a standing habit for rats
For a fancy rat, record respiratory sounds as routine: clear breathing during handling, any sneezing spells, and whether sounds appear after cage cleaning or persist on quiet days. Note porphyrin, the reddish discharge around eyes or nose, when it appears and whether it was a one-off after sleep or a daily pattern. Rats are prone to breathing trouble as a group-level concern, so dated notes across all cagemates reveal whether one rat is struggling or the whole cage reacted to new bedding on the same evening.
Feel for lumps during handling and write what you find
Add a handling-check line to the fancy rat record: during weekly play and health checks, note any new lump, its rough size in plain comparisons, and where it sits. You are recording, not diagnosing — a dated entry that a pea-sized lump under the arm appeared and grew slowly gives a vet decision-making material no memory can match. Pair that with weight figures, because a rat whose weight falls while a lump grows presents a clearer, more urgent picture than either fact alone.
Log food, training, and free-roam behaviour in detail
Fancy rats learn fast, so the record doubles as a training diary: name learned, litter corner used, recall to a rattle, and which puzzles were solved in minutes. Write the staple diet description and treat hierarchy too — the pea fished for eagerly, the herb ignored. Behaviour notes matter medically as well: a rat who stops bruxing happily during strokes, or who quits climbing to the top hammock, is flagging a change, and the date you wrote 'first skipped the high hammock' anchors the vet conversation.
Keep vet notes with group context attached
The fancy rat vet page should hold the exotics vet's details, each visit's findings copied faithfully, and follow-up dates circled back into your calendar. Record which cagemates attended, because respiratory notes often concern the group. Save the clinic's weight for each rat beside your home figures to cross-check your scale. If one rat is ever housed separately to recover, log the separation and reintroduction steps in the file, since rat social bonds and hierarchies shift quickly and a written reintroduction plan prevents avoidable fights.
Keep the rat file lively but organised
A fancy rat record grows fast, so tidy it monthly: current weights charted, open health threads flagged, training notes summarised into current abilities and house rules for helpers. A sitter needs the feeding routine, the lump being monitored, and who must not be housed alone, all on the front pages. Filing that current version in KinsLe's Pet Passport puts this rat's health history and group details into one packet ready for any vet trip.