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AnimalHospitalDesk
Evidence directory

Animal Hospital Anomalies List

Every documented Animal Hospital anomaly sign by evidence layer — window, photo, and CCTV — plus the hospital entity directory, the shutter-reject rule, and the shift tips behind each verdict.

Checked October 3, 2026Fan wiki + publisher documentation
Quick answer

The short version

Anomalies are animals with one or more abnormal characteristics that arrive at the reception window disguised as patients. The community wiki's sign lists split across three evidence layers: what you see live at the window, what the developed photo shows, and what the CCTV feed shows while the photo develops. One decisive sign anywhere in the layers is the reject trigger, and the documented rejection action is closing the reception shutters before the patient enters.

How anomalies work

The check-in game inside the treatment game

Animal Hospital's core tension is that its patients are not all patients. The official Roblox description sets the pitch in one line — you work the night shift and treat the patients, 'but some patients are acting weird' — and the anomaly system is that line made mechanical.

Publisher coverage describes the pattern as That's Not My Neighbor-style duty: each arrival must pass an inspection before admission. Patients who pass are admitted, diagnosed, and treated. Arrivals showing an anomaly sign must be refused, and the documented refusal action is closing the reception shutters before the patient gets in.

The game stacks the odds deliberately: signs hide in different evidence layers, so the window alone is never the full check. That is why this site runs every decision through four layers — live window, finished photo, CCTV, paperwork — and why the evidence tables below keep the layers separate instead of merging them into one 'anomaly look'.

Layer 1 — window

Live appearance signs

Check the patient directly at reception before touching any device. A single row here is enough to refuse entry.
SignWhat it looks likeCall
Smile with creepy eyesA wide smile paired with two dark eye spots holding small glowing pupils.REJECT
Three eyesA third eye sits on the forehead; the fan wiki lists it as a classic tell.REJECT
Crooked faceFacial features sit twisted or displaced compared with the species' normal model.REJECT
X-rayed faceThe face renders like an X-ray view with visible bone structure.REJECT
StaringThe patient holds unbroken eye contact with the player instead of behaving like a waiting patient.REJECT
Hollow faceDark, empty eye sockets with no visible pupils, often with twitching.REJECT
TwitchingRapid repeated jitter; the wiki notes it can read most clearly on the camera feed.REJECT
Tiny anomalyA shrunken patient form the wiki calls fairly harmless; completing its Journal entry pays 10 Animal Coins.ADMIT*

Source: Animal Hospital community wiki (Fandom) · Checked 2026-10-03

Layer 2 — photo

Developed-photo signs

Only a finished photo counts. Picking it up early costs Sanity and returns no result; static-only frames are the documented dispute.
SignWhat it looks likeCall
Redrawn or black eyesThe developed photo shows different or fully black eyes compared with the live patient.REJECT
Deformed headThe head shape in the photo bends or grows beyond the live model.REJECT
Different limbsArms or legs in the photo belong to another animal entirely.REJECT
Static photoThe frame develops into pure static. Sources disagree: treat as a strong reason to recheck the other layers, and close the shutters if any other sign exists.RECHECK
Cursed framesFlashing close-up faces and distorted inserts; grabbing the photo while cursed frames show costs 10 Sanity per the wiki.REJECT
Photo never rendersSome players report a blank result paired with other mimic signs; one CCTV-only encounter log describes a void body with a photo that never rendered.RECHECK

Source: Animal Hospital community wiki (Fandom) · Checked 2026-10-03

Layer 3 — CCTV

Waiting-room camera signs

Run the camera pass while the photo develops. The camera can disagree with a window view that looked clean.
SignWhat it looks likeCall
Black eyes on cameraEyes read black on the feed even though the window view looked normal.REJECT
Contortionist bodyThe body bends into shapes the species model cannot hold.REJECT
Staring at camerasThe patient looks straight into the camera in every view it appears in.REJECT
Void-black bodyA fully black silhouette; players pair it with a never-rendering photo and treat it as Mimic evidence.REJECT
Camera twitchingThe feed itself jitters while the patient is on screen.REJECT
Security Camera MimicA mimic figure visible standing in the camera room itself.REJECT
Mismatched earsThe camera shows a different species than the window; the wiki calls out cat-window patients with dog ears.REJECT
Mismatched faceA different face model appears on the feed compared with the live patient.REJECT

Source: Animal Hospital community wiki (Fandom) · Checked 2026-10-03

Shift tips from the wiki

Rules that make the checks safer

Shift 2 is a safe lesson

The wiki notes anomalies are never hostile on Shift 2, which makes it the tutorial shift for learning the sign tables under no threat pressure.

Tasing pays, shooting mostly does not

Tasing an anomaly grants +2 Sanity while shooting one grants nothing — the Secret Agent is the documented exception.

Wrong treatment kills anomalies

Giving an anomaly the wrong treatment item kills it, which speedrunners use deliberately. Do not try this on a patient you admitted by mistake — the same rule kills real patients.

The doctor is arriving

Community shift logs record this announcement at shift changes; treat it as the cue to reset the four-layer loop for the next wave.

Ambulance rhythm

The Ambulance Event starts on Shift 5 and recurs about every five shifts, so keep room capacity and an extinguisher ready before those shifts.

Static is a dispute, not a verdict

One publisher guide treats a static photo as decisive; a community test recorded static frames on patients that later passed. Use RECHECK when static is the only clue.

Named entities

When the threat is already inside

Entities differ from check-in anomalies: they act inside the hospital during a shift. Each has a focused page.

FAQ

Frequently asked questions

How do I reject an anomaly in Animal Hospital?

Close the reception shutters before the patient enters. Publisher and community documentation describe shutter-closing as the refusal action once a decisive anomaly sign is confirmed.

What are the main anomaly signs?

The wiki's lists cover live appearance signs (creepy smiles, three eyes, crooked or X-rayed faces, hollow faces, twitching), photo signs (changed eyes or limbs, deformed heads, cursed frames, static), and CCTV signs (black eyes, void bodies, mismatched ears or faces, camera staring).

Is a static photo always an anomaly?

Sources disagree, and this page shows both sides: one publisher guide treats static as decisive, while a community test recorded static on patients that later passed. The safe call is to recheck the other layers before deciding.

Can I let an anomaly in on purpose?

You can, and the wiki documents consequences: anomalies inside the hospital cause trouble, and speedrunners deliberately use the wrong-treatment kill. For normal play, the shutter reject is the documented safe response.

What happens if I admit a normal patient by mistake?

Nothing about the anomaly system — but tasing that patient costs 15 Sanity per the wiki's Sanity table, so be careful with defensive tools on admitted patients.

Do anomaly rules change between shifts?

Yes in documented ways: Shift 2 anomalies are never hostile, the Ambulance Event adds surge patients every five shifts from Shift 5, and updates such as the July 10 rework have changed entity behaviors.

Next action

Related pages

Open anomaly identifierVisual signsPhoto signsCCTV signsEvidence log

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