All Anomalies in Animal Hospital - Full List & Guide
Know the threats and survive your shifts!

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Anomalies are a major threat to your life in Animal Hospital, and part of your job involves rejecting their entry, removing them from the premises, or simply avoiding getting killed by them.
Most of these creepy entities can be tough to spot or just hard to deal with in the heat of the moment. To help you get ready for your next shift in the Animal Hospital, we've compiled this list of all anomalies in the game, what they do, and how to beat them.
Full List of Anomalies
Before we begin, this list is split into two parts: Enemies and Patients. We'll explain the difference in each section, and we'll start with the enemies first as they pose a larger risk!
Enemy Anomalies
Enemies are hostile anomalies that exist solely to actively make your life hell and reduce your sanity directly. Here are all of the enemies and how to counter each:
Anomaly | Image | How to Find | Behavior | Tips |
|---|---|---|---|---|
Head Banger |
| Always at the reception office window | Bangs its head repeatedly and blocks shutters | Giving it coffee (even with 1 use left) will safely remove it |
Mass of Eyes |
| Spawns in random rooms with patients | Reduces your sanity if you look at it | Just don't look at it |
Stalker |
| Randomly spawns all around the hospital | It'll wait around corners and stare at you, reducing your sanity if you look back | It despawns if you walk around it without looking at it directly |
Ghost |
| They can spawn if a patient dies | Roams the hospital and occasionally follows you to reduce your sanity | You can't get rid of it permanently, so the best way to beat it is by avoiding deaths to begin with |
Hiders |
| Look out for smiling faces camouflaged in walls | They wait for players to approach and can steal treatment items or reduce sanity | The fire extinguisher can be used to get rid of them |
Mimic |
| Can spawn if you let an anomalous patient in (covered in next section) | Has a chance to reveal itself and chase you | The taser is the safest way to neutralize it |
Ritual |
| Can occur randomly if you let an anomalous patient in | The patient will start floating and channeling a deadly ritual | You have to extinguish the candles in the room (eye drops can be used to prevent sanity loss) |
Camera Monster |
| Randomly appears in security cameras | Forces zoom in while viewing camera before jumpscaring you | Exit the camera menu before it gets too close |
Slimebert |
| Checks in during a "Slime Shift", which is when the hospital becomes full of slime | It will roam the hospital and eat anything in its way before spitting them back out | You can stun him with the fire extinguisher, but he'll otherwise go away on his own after the shift |
Bed Monster |
| Can spawn under a patient's bed | Will grab anything that walks in its radius, including other anomalies | You can give it maple syrup to safely remove it |
Tentacles |
| Randomly spawns after successful surgery | Starts an emergency surgery and reduces your sanity if you touch it | The only way to safely remove it is another successful surgery |
Patient Anomalies
Patient anomalies are essentially Mimics that you must drive away by using the shutters at the office. If you check them in, they have a chance (not guaranteed) to become an enemy Mimic.
Otherwise, they're completely harmless if they don't "activate", though letting them in will reduce your performance rating for the shift. Here are telltale signs that a patient is actually an anomaly:
Although these types of patients are not guaranteed to spawn a deadly Mimic, checking one in can trigger various other anomalies, like the Tentacles or Rituals.
Anomaly | Image | Unique Feature | Tips |
|---|---|---|---|
Twitching Patient |
| Every few seconds, a part of their body (head, arms, etc.) will unnaturally and very briefly twitch | Stare at patients for a couple of seconds before checking them in |
Distorted Face |
| They have a very unusual and distorted set of eyes & mouth | These are pretty obvious |
Hollow Eyes |
| These have hollow, black eyes | They share the same eyes as the Head Bangers |
Three Eyes |
| They have three glowing red eyes that are close together | These are pretty obvious |
Cringing Face |
| They have a realistic cringing face | These are pretty obvious |
Creepy Face |
| Huge and creepy grinning face | These are pretty obvious |
Camera Anomaly |
| Looks normal in person, but is messed up when viewed through a security camera | This has many varieties: Mimic head, a black bar with eyes, messed up character models, etc. |
Photo Anomaly |
| The printed photo does not match the patient's features. | Don't pick up pictures immediately, as some of these will also reduce your sanity. |
Staring Patient |
| The patient's eyes/face will follow you around | Normal patients don't follow your movements with their head/eyes! |
There may also be other varieties of each anomaly, including multiple of these signs occurring simultaneously (e.g. a "Hollow Eyes" patient can also twitch and mess with the camera). Just pay attention to anything obviously weird about patients trying to check in!



















