Anomaly Checker
Tick every sign you can see on a patient. Matching anomalies show up below as you go, ranked by how many signs line up — each result links to the full entry with a quick reject-or-treat call.
Covers 12 anomalies with a documented response. Tick as many signs as you've observed — you don't need to match all of them.
Tick a sign above to see matching anomalies.
How this tool works
The checker holds 12 anomalies and check-in characters from our Anomalies database that have a documented behavior and a concrete response (accept, reject, fight, or wait it out). Each one contributes a short list of observable signs — paraphrased from that entity's own "behavior" text on the Animal Hospital Wiki, not invented for this tool. When you tick a sign, every anomaly whose sign list includes it is shown, sorted by how many of its signs you've ticked so far (shown as "N of M signs match"). Ticking more signs narrows the list; ticking a sign unique to one anomaly identifies it immediately.
Each result card shows a "Quick call" — a one-line reject/treat/fight summary — followed by the full response text and a link to that anomaly's dedicated page for the complete write-up and source citation. Entries that only redirect to another wiki page (for example "Skinwalker" and "Shapeshifter," which both document the same Mimic enemy) are merged into their canonical entry so you don't see duplicate results. Anomalies still marked "needs_check" on the wiki are withheld from this tool entirely, matching the verification policy used across the rest of the site.
Nothing here requires a network request after the page loads: the full sign list and every anomaly's data are built into this page at compile time, so checking boxes works offline once the page is open. If you're checking a patient for a specific known illness or item interaction instead of a monster encounter, use the Treatment Finder; to test how well you know these signs from memory, try the Anomaly Quiz.