Snake spinal injury and trauma first aid: falls, crushes and bites

Quick answer

A snake with a suspected spinal injury is lifted as one piece, supported along its whole length, not picked up in the middle.

A snake has no limbs to splint. Its skeleton is a chain of vertebrae with a pair of ribs on almost every one, and those ribs are how it breathes and how it moves. That is why the correct response to a fall, a crush or a bite is to support the whole body, keep the animal warm and still, and get it to a reptile vet, rather than to bandage anything.

The most useful thing you can do in the first hour is avoid making it worse. Lifting a snake with a fractured spine by the middle, letting it hang, or wrapping the body firmly all add injury to an animal that was already hurt.

• Slide a flat rigid support under the snake and lift the whole animal on it.
• Transport in a small, dark, rigid, escape proof container with soft lining and nothing loose inside.
• Warm the car, not the snake. A compromised snake may not move away from a heat source.
• Do not feed, do not soak, do not apply ointment, and do not give any medication.
• Photograph the shape of the body from above and from the side before you move it, if you safely can.

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Never wrap a snake's body firmly to immobilise it.

Most snakes have no sternum joining the ribs, and they ventilate by moving those ribs. A circumferential bandage, tape or tight wrap around the trunk restricts that movement and can suffocate the animal. Any external support for a snake's spine has to be applied by a vet who knows where the lung sits and how much of the body can be immobilised.
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Decide in 60 seconds

Why the anatomy dictates the first aid

A snake's vertebral column runs the full length of the animal, with hundreds of vertebrae, each carrying a pair of ribs. Unlike a mammal, most snakes have no sternum, so the ribs are free at their lower ends.

That arrangement does two jobs at once. The rib cage is the engine of locomotion, providing the anchor points for the muscles that drive lateral undulation and rectilinear crawling. It is also the bellows: a snake breathes by moving those ribs, expanding and compressing the body cavity.

So there is no part of a snake's trunk that can be immobilised without a cost. Splinting a limb in a dog restricts a limb. Splinting the trunk of a snake restricts the animal's ability to breathe.

Lung anatomy adds to it. In most snakes the left lung is greatly reduced or absent, and a single elongated right lung runs a long way down the body, sometimes continuing into a thin walled air sac. An injury on the right side of the body is therefore more likely to compromise breathing than the same injury on the left.

The spinal cord runs the length of the column. A fracture or dislocation interrupts it at a point, and everything behind that point loses motor control and sensation. This produces the pattern owners describe as the snake dragging its back half: the front section moves normally, the rear is limp and pulled along.

Finally, a snake is an ectotherm. Bone healing, immune response and drug metabolism all run at the rate the animal's body temperature allows. This is why reptile fracture management is measured in months, and why keeping the animal at the correct temperature is part of the treatment rather than a comfort measure.

How snakes actually get hurt

Falls during handling.

The most common mechanism by a wide margin. A snake supported at one point, or draped over a shoulder, can drop suddenly, and a heavy bodied snake landing on a hard floor takes the full impact through the spine.

Crushing in lids, doors and tracks.

Sliding glass doors with a snake's body in the track, hinged lids dropped, and doors closed on a snake exploring the room. Crush injuries frequently look mild on the day and declare themselves over the following days as tissue dies.

Being stood on or sat on.

An escaped snake finds warm, dark places, including under cushions and bedding.

Dog and cat attacks.

A bite from a mammal combines puncture, crush and heavy bacterial contamination. Cat bites in particular introduce bacteria deep and are frequently underestimated.

Live prey.

Rats and mice bite when frightened, and a snake that is not in feeding mode will not defend itself. The wounds are typically on the dorsal surface and around the neck, they are deep, and they become infected.

Enclosure furniture.

Unstable rocks, heavy hides that shift, and gaps a snake can wedge into and then be trapped by.

Thermal injury.

Unguarded heat rocks, lamps a snake can reach, and heat mats without a thermostat cause burns that are painful and slow to heal, and a burned snake often has to be managed as a trauma case for months.

Recognising a spinal injury

A kink that does not straighten.

Snakes coil in smooth curves. An angular deviation, particularly one that stays in the same place regardless of how the snake positions itself, is abnormal. Look from directly above and from the side, since a kink can be lateral, dorsal or ventral.

A boundary between normal and flaccid.

Run your attention along the body rather than your hands. Behind a spinal injury, muscle tone is lost: the body feels slack, the snake cannot grip, and the tail hangs rather than curling.

Dragging.

The front third crawls and the rest follows passively. This is the clearest indicator of cord injury and it is an emergency.

Loss of the righting reflex behind the lesion.

A healthy snake gently rolled onto its back will right itself along its whole length. If the front rights and the rear stays inverted, the boundary is where the injury is. Do this once, gently, and not at all if the snake is in obvious distress.

Inability to constrict or to lift the head and neck.

A constrictor that can no longer grip, or a snake that cannot raise the front of its body off the ground, has lost function it should have.

Discolouration under the scales.

Reptiles do not bruise the way mammals do, but haemorrhage shows as pink, red or purplish discolouration, most visible on the pale ventral scales. It can take a day or two to appear.

Later signs.

A healed fracture may leave a permanent kink. A snake that is otherwise well, feeding and moving with an old kink often needs no intervention, but the first assessment should still be veterinary.

Look at the mouth only if the snake allows it easily. Snakes that strike glass or fall face first damage the rostrum and the mouth, and those injuries lead on to infectious stomatitis.

The kinks that are not fractures

This is where a confident diagnosis at home goes wrong, because several very different problems produce a snake that is bent, stiff or reluctant to move.

Vertebral infection.

Bacteria reaching the spine from elsewhere in the body can produce bone infection and new bone formation, which stiffens a section of the column. There is no accident in the history, the change comes on over weeks, and the snake is often off food and dull as well.

A constricting band of retained shed.

A ring of unshed skin that has dried and tightened acts like a tourniquet. It causes swelling behind it, then discolouration, then tissue death. It can look like a kink or a lump, and it is easy to miss on a patterned snake. Always check the tail tip and the whole body after an incomplete shed.

Neurological disease.

Stargazing, corkscrewing of the head and neck, and generalised loss of the righting reflex point to disease of the nervous system rather than to a broken back. The distinguishing feature is that the head and the whole body are involved, and there is no clear boundary between normal and abnormal.

Inherited neurological traits in certain morphs.

Some ball python morphs are well known for a head wobble or corkscrewing that is present from hatching and is not caused by injury. If your snake has always done it, this is worth raising with the vet rather than treating as new trauma.

Something inside.

A firm mid body swelling with reduced movement can be a food bolus, an impaction, a retained egg or fetus, or a mass. A snake that has recently eaten moves differently and should not be judged in the days after a meal.

Burn contracture.

Healed thermal injury tightens the skin and can hold a section of the body in an abnormal posture.

The two questions that sort most of these are whether there was a definite incident, and whether the change appeared instantly or over weeks. Sudden onset with a known accident is trauma. Gradual onset with no accident is not, and needs a different investigation.

The first hour

Secure the scene before the snake.

If a dog or cat is involved, put it behind a door before you do anything else. Second bites happen while owners are focused on the snake.

Do not chase.

A snake that has retreated under furniture and is moving normally is better retrieved calmly than dragged out by the tail. Pulling on a snake is exactly the force that damages an injured spine.

Lift the whole animal at once.

Slide something flat and rigid under the snake: a piece of stiff card, a chopping board, a baking tray, the lid of a plastic box. Ease it under the body along its length and lift the support, not the snake. For anything larger than a couple of arm lengths, get a second person.

Choose the right container.

Rigid, opaque or dark, escape proof, and only slightly larger than the coiled snake. Line it with paper towel or a folded pillowcase laid flat. No branches, no rocks, no water bowl that can slide, no deep loose substrate. A cloth bag is fine for a healthy snake and wrong here, because it lets the body fold.

Manage temperature the indirect way.

Warm the car in advance and keep the container out of draughts. Do not put a heat pack against the container: an injured or shocked snake may not be able to move away, and thermal burns on top of trauma are a common iatrogenic injury. If the journey is long and cold, ask the clinic what they want you to do.

Control bleeding with pressure only.

Clean gauze and gentle, sustained direct pressure. No tourniquets, no styptic powder inside a wound, no attempt to close anything.

Leave wounds alone otherwise.

Sterile saline to rinse away gross debris is acceptable. Nothing else. No antiseptic scrub, no iodine soak, no antibiotic ointment, no honey, no essential oils, no cream from the human bathroom cabinet.

Do not feed, do not soak, do not bathe.

An injured snake with reduced mobility can drown in a bath it would normally handle easily, and food adds a large mass to an abdomen you do not yet understand.

Record what happened.

Time, mechanism, height of the fall, the surface it landed on, and what the snake did immediately afterwards. Photograph the body shape from above and from the side. Film it moving if it will move. This detail changes what the vet looks for on a radiograph.

Transport setup: rigid carrier, flat soft lining, nothing loose inside, and a container only slightly larger than the coiled animal.

Why owners should not splint, and what treatment actually looks like

Beyond the breathing problem, there is a practical one. A snake's spine is a long series of small joints, and stabilising it means identifying which vertebrae are involved. That requires radiographs. Applying support to the wrong segment achieves nothing and immobilises healthy tissue.

Veterinary management of a snake with a spinal fracture usually rests on four things: pain relief, strict enclosure rest, precise temperature control, and time. Reptile analgesia exists and is used; the idea that reptiles do not feel pain is outdated and wrong.

Strict rest means a hospital enclosure rather than the normal one. Flat, with nothing to climb, paper towel on the floor, a low hide with a side entrance so the snake does not have to lift itself, a shallow water bowl it cannot fall into, and no handling except what treatment requires.

Temperature control becomes clinical. A snake kept below its preferred range heals slowly and mounts a poor immune response. A thermostat, an accurate thermometer at the animal's level, and a proper gradient are part of the prescription.

Some fractures are stabilised externally by the vet, some are managed conservatively, and some in the tail are managed by amputation of a devitalised section. That is a decision made on imaging, not on appearance.

Expect a long course. Feeding may need to be adjusted to smaller prey items, and regurgitation is a risk in a stressed, recently handled snake.

Recovery housing: flat, low, uncluttered, with accurate temperatures and nothing that requires the snake to climb or brace.

Preventing the injuries that actually happen

What never to do

Do not pick up a suspected spinal injury by the middle of the body, and never by the tail.

Do not wrap, tape or bandage the trunk to hold it straight.

Do not attempt to straighten a kink. You cannot know what is displaced, and manipulation can convert a stable fracture into a cord injury.

Do not give any human medication. Anti inflammatory drugs and painkillers formulated for people have no safe home use in reptiles, and dosing in an ectotherm is not a matter of scaling by weight.

Do not use a heat pack directly against an injured snake, and do not raise the temperature above the normal range hoping to speed healing.

Do not offer food until the vet says so.

Do not assume a snake that moves away afterwards is fine. Crush injuries, internal bleeding and spinal injuries with incomplete cord damage all look better on day one than on day three.

Do not put an injured snake back into a tall, furnished enclosure with climbing branches.

What the vet will want

When to get help

Go now for a snake that drags its rear section, will not right itself, is bleeding heavily, is breathing with an open mouth, or has been bitten by a dog or cat.

Same day for any visible kink, any crush injury, rodent bite wounds, discolouration under the ventral scales, or a snake that will not move normally after a fall.

This week for a snake that seemed fine after an accident but has since gone off food, is moving less, or has developed swelling anywhere along the body.

Find a reptile experienced vet before you need one. General practices frequently do not see snakes, and the first hour after a serious injury is not the time to start searching.