Guinea pig fall and crush injuries: the first fifteen minutes

Quick answer

Guinea pigs do not meet cars, but they meet the household equivalents constantly: dropped from a lap, jumped from a table, stepped on during floor time, shut in a door, crushed under a closing hutch lid, or sat on under a blanket. Those are crush and fall injuries, and they are dangerous for the same reason a road accident is: the visible damage is a poor guide to the internal damage.

The first fifteen minutes are about not making it worse. Do not lift the animal under the belly, do not straighten anything, do not offer food or water to a guinea pig that is struggling to breathe, and do not give any painkiller. Slide it onto something flat, keep it warm and quiet, and drive.

Then understand the clock. A guinea pig that runs away after a fall can still have a bruised lung that worsens over the following day, or a ruptured bladder that only declares itself two days later.

Flat, supported, warm and still. Everything useful in the first fifteen minutes is about restricting movement.

• Move the guinea pig on a flat rigid surface. Do not scoop it up under the abdomen.
• Open-mouth breathing in a guinea pig is a critical sign. Go immediately.
• Never give human painkillers. Nothing from the cupboard is safe in this species.
• A guinea pig that seems fine after a fall still needs to be seen the same day.
• Watch for two delayed problems: worsening breathing over the first day, and not eating.

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The animal that walks away is not necessarily the animal that is safe.

Blunt trauma bruises lung tissue, and a bruised lung leaks fluid into the airspaces over the hours that follow. Breathing that was normal at the moment of the accident can be laboured six or twelve hours later. Blunt trauma also ruptures a full bladder, which produces almost no signs at first and then a rapidly deteriorating animal two or three days later as waste products build up. Both of those need to be looked for before they announce themselves, which is why the vet visit is the same day rather than when something changes.
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Decide in 60 seconds

Why household trauma is worse than it looks

A guinea pig is built low, wide and heavy for its frame, with a light skeleton and a great deal of powerful muscle over the hindquarters. That combination is efficient for a grazing animal that bolts short distances, and poor at absorbing impact.

Falls are the commonest mechanism. A guinea pig held at chest height is a long way above the floor in its own terms, and guinea pigs launch themselves without warning when startled. They also do not judge edges: a guinea pig on a table will walk off it.

Crush injuries are the second group. Being stepped on during floor time, sat on under a fleece or a blanket, shut in a door, or trapped under a hutch lid or a heavy hide.

Both produce the same short list of serious injuries.

Spinal injury. Fracture or dislocation of the lumbar spine, which produces hind limb paralysis. This can happen from the fall itself or from the animal struggling violently during a badly executed restraint.

Long bone fractures. Most often the hind limb. The bone is thin and the soft tissue cover is minimal below the knee, so closed fractures become open ones easily.

Bruised lungs. The most under-recognised injury in this list, and the one that changes over time.

Internal bleeding. From the liver, the spleen, or torn blood vessels in the abdomen.

Ruptured bladder. A full bladder is essentially a fluid-filled balloon, and a crush injury bursts it. Urine collects in the abdomen and the animal becomes progressively unwell over days.

Diaphragmatic tear. Abdominal contents move into the chest and the animal cannot expand its lungs.

Head injury. Head tilt, a rolling gait, uneven pupils or seizure activity after an impact.

None of these have reliable external signs in the first minutes, which is the whole reason for the same-day rule.

A flat rigid base and a towel is the whole moving kit. A baking tray, a book, or a piece of stiff card all work.

The first fifteen minutes

Stop everything else.

Get other pets and children out of the room, and turn off noise. A frightened guinea pig that runs and hides makes everything harder and risks further injury.

Look before you touch.

From where you are, note the breathing rate and effort, whether the mouth is open, whether all four legs move, whether there is bleeding, and what position the animal is in. This is the information the vet cannot get later.

Move it as one piece.

Do not scoop a guinea pig up under the abdomen after a crush or a fall. Slide a piece of stiff card, a baking tray, a chopping board or a hardback book underneath, with a towel on top of it, keeping the body in line. Support the head end and the hindquarters together.

If the animal is bright and running about, a normal careful two-handed lift with the whole body supported is fine, but keep it low and short.

Into a small carrier.

Lined flat with a towel, not deep bedding. Small is better than roomy, because it stops the animal sliding around during the drive.

Control any bleeding.

Direct pressure with a clean pad, five minutes, timed. Do not remove anything embedded.

Warmth, not heat.

A shocked guinea pig loses body heat fast. Wrap it in a dry towel and put a covered warm water bottle beside it, never underneath, with room to move away. Guinea pigs overheat easily and a hot pad in a small closed carrier is dangerous.

Do not offer food or water to an animal that is collapsed, breathing hard, or not swallowing properly. Aspiration is a real risk.

If the animal is bright and alert, put a handful of hay in the carrier. Eating during the journey is a genuinely good sign.

Do not give any medication.

No paracetamol, no ibuprofen, no aspirin, no leftover medicine from another pet. There is no safe home analgesic for a guinea pig, and several of the obvious candidates are toxic.

Call ahead.

Say it is a guinea pig, say what happened, and say what the breathing is doing. That determines whether they clear a space for you.

Bring the companion.

If there is a bonded cage mate that was not involved, bringing it in a separate compartment reduces stress for both, and prevents the awkward situation of a bonded pair being separated abruptly.

What happens over the next three days

The reason the follow-up matters is that the picture changes.

First hours. Shock, pain, and any bleeding. Pale gums, cold extremities, weakness, fast shallow breathing.

Six to twenty-four hours. Bruised lung tissue reaches its worst. Breathing becomes faster and more laboured, the animal may sit with its elbows out and its neck extended, and open-mouth breathing appears in severe cases. A guinea pig whose breathing has got worse rather than better needs to go back immediately.

One to three days. A ruptured bladder declares itself. The animal becomes progressively quieter, stops eating, and the abdomen may feel full. Urine output falls or stops. This is why the vet may check the abdomen for free fluid on the first visit even in an animal that looks well.

Throughout. Gut stasis. Pain and stress slow the intestine, appetite falls, and the cycle reinforces itself. This is the complication that turns survivable trauma into a fatal outcome, and it is largely preventable with good pain relief and assisted feeding.

Three to seven days. Wound infection and abscess formation at any puncture site. Guinea pig pus is thick and does not drain, so an abscess usually needs surgical management.

One to two weeks. Fracture healing begins. Cage rest during this period is where owners under-restrict.

Weigh daily during all of it, on a kitchen scale, at the same time, and write the number down. Weight is the most honest measure of whether the animal is eating enough.

Gum colour is the quickest shock check you have. Pink and moist is normal; pale, white or grey means go now.

Things that look like trauma and are not

Heat stress. A collapsed guinea pig in warm weather, flat out, breathing fast, sometimes with drooling, may be overheated rather than injured. Guinea pigs cope poorly with heat and humidity. Move it somewhere cool, dampen the ears and feet with tepid water, and go.

Pregnancy toxaemia. A heavily pregnant sow, or one that has recently given birth, who becomes weak, stops eating and collapses. This is a metabolic emergency and it needs to be recognised on the phone so the practice is prepared.

Stroke or vestibular disease. Sudden head tilt, circling and rolling with no witnessed accident.

Severe mite infestation. The guinea pig mange mite causes such intense irritation that affected animals can have seizure-like episodes and run frantically. Owners often report it as a fit or an injury. Look for hair loss and scabbing along the back and flanks.

Hypovitaminosis C. Long-standing vitamin C deficiency causes painful joints, reluctance to move and a guinea pig that seems to have hurt itself. The history is one of gradual decline rather than sudden onset.

Say what you actually saw rather than what you concluded. Whether an accident was witnessed is one of the most useful pieces of information the vet has.

Preventing the household accident

Handle seated. Almost every drop happens because someone was standing. Sit on the floor, on a sofa, or on a low chair before the guinea pig leaves the cage.

Two hands, always. One under the chest, one supporting the hindquarters. Never lift by the shoulders or under the front legs alone.

Never carry a loose guinea pig between rooms. Use a carrier, even for a short trip. A startled guinea pig kicks out of arms with real force.

Know where both animals are before you sit, step or close anything. Guinea pigs sleep under fleece blankets and cushions, and being sat on is a common and entirely preventable injury.

Floor time needs boundaries. A pen or a closed room with the doors held open by a wedge, so no door can be closed on an animal in the gap.

Check under and behind furniture before moving it during floor time.

Hutch lids and heavy hides need to be propped or hinged so they cannot fall.

Teach children the seated rule and supervise every session. Children drop animals because they get startled, not because they are careless.

Ramps and multi-level cages should have solid sides. Falls from an internal ramp are common.

What never to do

Do not lift a guinea pig under the abdomen after a crush or a fall.

Do not straighten, pull on or splint a limb.

Do not massage or rub an injured area.

Do not give any human painkiller, or medication prescribed for another animal.

Do not force food or water into an animal that is collapsed or breathing hard.

Do not bathe an injured guinea pig.

Do not put a heat pad under a small carrier.

Do not decide to wait overnight because the animal ran off and seems fine.

Do not return the guinea pig to a multi-level cage until the vet has cleared it.

When to get help

Immediately for open-mouth breathing, worsening breathing at any point in the first day, pale or grey gums, dragging hind legs, blood from the nose or mouth, a tense abdomen, no urine passed, or collapse.

Same day for any fall, crush, door incident or being stepped on, whatever the animal looks like afterwards.

Go back promptly for breathing that is worse than it was, for a guinea pig that has stopped eating or is grinding its teeth, for weight falling on the daily record, for blood in the urine, or for a firm swelling appearing at an old wound.

The recovery target is unremarkable: eating hay, normal droppings, steady weight, and quiet breathing you have to look for.

Bring exactly what happened and from what height or under what weight, the time it happened, whether the accident was witnessed, what the animal did immediately afterwards, the video if you took one, the current and previous weight, and whether it has eaten or passed urine since. In blunt trauma, the mechanism tells the vet where to look first.