singapore rabbits

how molar spurs cut the tongue, and what to watch

updated 18 May 2026

molar spurs are one of the quieter crises in rabbit care. your rabbit may still move around the flat, groom normally, and come to you for attention. meanwhile it could be quietly starving from pain in the back of its mouth. in Singapore, this is harder to catch than it sounds. exotic vets are scarce compared to cat-and-dog clinics, and after-hours options are limited. year-round heat and humidity (28 to 32°C, 70 to 90% relative humidity) also suppress appetite on their own. a rabbit eating less than usual can look simply hot, not like one developing a tongue laceration over weeks.

what molar spurs are

rabbits have hypsodont teeth, meaning the cheek teeth grow continuously throughout their lives. the design relies on abrasion: coarse, fibrous hay grinds the surfaces down at roughly the same rate they grow. when the grinding is uneven, some tooth surfaces wear faster than others. the opposing tooth, with no matching surface to wear against, grows into a sharp, pointed overhang. that point is a molar spur.

spurs are not a standalone disease. the cause is almost always upstream: usually malocclusion, where teeth do not align correctly, or a diet too low in long-strand hay. a rabbit eating mostly pellets and minimal hay is not generating enough grinding motion to keep the cheek teeth level.

lower molars are the most common site. they spur inward, toward the tongue. upper molars can spur outward toward the cheek. both cause pain, and neither resolves without veterinary treatment.

how spurs injure the tongue

the tongue sits between the lower cheek teeth on both sides. every chewing cycle drags the tongue laterally across those surfaces. when a lower molar carries a sharp spur, the tongue moves against that edge repeatedly. during a normal feeding session, this can happen dozens of times per minute.

the injury usually begins as surface abrasion, a raw, inflamed patch on the lateral border of the tongue. with continued trauma it deepens. a persistent spur erodes the tissue into an ulcer. in more advanced cases, the edge cuts cleanly through the mucosa, leaving a visible laceration.

in a SG flat, the warm and humid environment accelerates this. a superficial abrasion that might have healed passively in a cooler, drier climate can become secondarily infected within a few days here. once infection sets in, the problem is no longer just the spur. it is an infected wound in a location the rabbit uses every time it eats, drinks, or grooms.

the result is a rabbit that begins to associate eating with pain. it will start refusing hay first, then pellets. the behaviour often looks like picky eating before it looks like illness.

signs to watch before food refusal

by the time a rabbit refuses food entirely, the injury has usually been developing for days or weeks. these earlier signs should prompt a same-week exotic vet visit:

drooling or wet chin fur. rabbits do not drool under normal circumstances. wet fur under the chin or along the throat is a direct signal of oral pain or difficulty swallowing. do not attribute it to drinking habits or the humidity.

quidding, dropping food mid-chew. you will see half-chewed hay or partially crushed pellets on the floor of the pen. the rabbit picks food up, starts chewing, then drops it. it may return and try again. this is one of the most reliable early signs of cheek-tooth pain.

progressive weight loss. weigh your rabbit weekly on a kitchen scale. a loss of 50 grams or more in a single week is significant. in a small HDB flat where the rabbit has a set routine, gradual weight loss is easy to miss without regular measurements.

reduced cecotrope consumption. rabbits eat their soft droppings directly from the anus. cecotropes left on the enclosure floor suggest the rabbit is finding it uncomfortable to lower its head or open its mouth fully.

asymmetric or cautious chewing. a rabbit trying to avoid a painful side may chew only on the less-affected side. you may notice the jaw working unevenly, or the rabbit tilting its head when picking up food.

any combination of these signs should move a vet visit to within a few days, not the next available slot in two weeks.

why SG rabbits face higher risk

diet quality is the first factor. pellets are widely stocked across SG pet shops in areas like Jurong, Tampines, and Clementi. unlimited grass hay is harder to source, bulkier to store in an HDB flat, and more expensive per kilogram. it is also the staple that actually grinds the cheek teeth. many owners feed a pellet-heavy diet without realising that hay is doing the dental work, not the pellets.

heat reduces hay intake further. at 30°C in a flat without consistent AC coverage, a rabbit may simply eat less across the day. over several months, that cumulative reduction in hay chewing translates to uneven wear on the cheek teeth.

breed structure adds another layer of risk. lionheads, Holland lops, and other lop varieties are popular in Singapore and carry compressed skull geometries. their dental arches are shorter, making natural alignment harder to maintain. if you own a lop breed, cheek-tooth assessment should be part of every annual examination.

finally, not all clinics in Singapore have the tools or training to examine rabbit cheek teeth properly. a vet comfortable with dogs and cats may perform a visual exam and find nothing. cheek teeth sit too far back in the mouth to assess without appropriate equipment. a rabbit with moderate spurs can pass a surface check at a general clinic and deteriorate over the following months.

what the vet will do

a proper cheek-tooth examination requires sedation or general anaesthesia. rabbits cannot open their mouths wide enough for safe assessment when awake, and attempting a forced oral exam risks jaw injury and extreme stress.

under anaesthesia, the vet uses a mouth gag and speculum to hold the mouth open safely. the cheek teeth are then examined with a light source and probe. skull radiographs are often taken alongside to assess tooth roots and catch disease developing below the gumline that surface inspection misses.

if spurs are identified, the vet files or burrs them down to a level surface using a dental tool. this is called coronal reduction. the procedure is the same one covered in more detail in our rabbit molar burr procedure guide.

tongue injuries are assessed for depth after the spur is removed. superficial abrasions typically heal on their own once the source of trauma is gone. deeper ulcers or lacerations may require pain relief medication or antibiotics. your vet will advise on soft-food feeding during recovery and what to monitor at home.

as of 2026, dental procedures under anaesthesia at SG exotic clinics typically range from SGD 250 to SGD 600 or more. the final cost depends on complexity and whether radiographs are included. costs vary between clinics, so call ahead and ask for an estimate.

what owners often get wrong

waiting for the rabbit to stop eating completely. a rabbit still picking at food is not fine. quidding, selective eating, and hay avoidance are earlier and equally valid warning signs. by the time a rabbit refuses all food, the injury is well established.

attributing wet chin fur to the heat or sloppy drinking. some owners see moisture around the mouth and assume it is just condensation from the water bottle or a spill. rabbits do not drool. any persistent wetness around the mouth or chin needs a vet examination.

not requesting a dental check at annual visits. many SG owners bring their rabbits in for routine consultations but do not ask about cheek-tooth assessment. because this requires sedation, it is often an add-on that is not automatically offered. ask your exotic vet explicitly whether a cheek-tooth examination is included or available.

using activity level as the main health indicator. a rabbit with a tongue ulcer will often still groom, explore, and respond to attention. rabbits are prey animals and are wired to mask discomfort. apparent alertness and normal movement do not rule out significant oral pain.

community-sourced information here is not veterinary advice. for any health concern see a licensed SG exotic vet.

community-sourced information, not veterinary advice. for medical issues, see a licensed SG exotic vet — start with our vet directory.

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