singapore rabbits

blocked tear duct flush, what the vet does

updated 19 May 2026

if your rabbit’s cheek fur is always damp, you are probably dealing with more than just a teary eye. in Singapore’s year-round heat and humidity, that constant wetness can escalate from a cosmetic nuisance to a painful skin infection in days. the culprit is usually a blocked nasolacrimal duct, the narrow drainage tube that runs from the corner of the eye down to the nose. when it clogs, tears spill over and sit on the fur. the treatment is a nasolacrimal flush, a short procedure most owners have never seen or heard of before. exotic vets in Singapore who routinely perform it are fewer than general cat-and-dog clinics, so understanding what the appointment involves helps you act quickly and find the right care.

what the blocked tear duct actually is

the nasolacrimal duct is a thin channel that drains tears away from the eye. in rabbits, this duct is unusually narrow and makes a sharp curve near the roots of the upper premolars and molars. that anatomy makes blockages far more common in rabbits than in cats or dogs.

when the duct is blocked, tears overflow onto the face. you may see:

  • persistent wetness or staining below one or both eyes
  • white or creamy discharge at the inner corner of the eye
  • fur loss or raw skin on the cheek from constant moisture
  • a mild sour smell from the damp area

a blocked duct is not immediately life-threatening, but it is not minor either. chronic dampness in Singapore’s humidity creates ideal conditions for bacterial and fungal skin infections. get a vet appointment within a few days of noticing the signs, not weeks.

why Singapore rabbits are at higher risk

Singapore sits at 28 to 32°C with 70 to 90% humidity year-round. even rabbits kept in AC rooms are exposed to humid air every time the door opens or the temperature fluctuates. moisture does not evaporate easily in this climate. damp fur under the eye stays damp, and bacteria proliferate fast.

dental disease is the most common underlying cause of blocked tear ducts in rabbits. the roots of the upper cheek teeth sit directly beneath the nasolacrimal duct. when those teeth are overgrown or misaligned, the roots press on the duct from below and compress it shut. Singapore rabbits on pellet-heavy diets often develop dental problems earlier than owners expect, because pellets do not provide the jaw movement and tooth wear that hay does.

breed matters too. Lionheads, Lops, and other rabbits with shorter or flatter faces have more compressed skull anatomy. the duct in these breeds makes tighter bends, which means blockages happen more easily and more often. if your rabbit is one of these breeds, ask your exotic vet to check nasolacrimal health at every annual check-up.

what the vet does: the nasolacrimal flush

the procedure is called a nasolacrimal flush. here is what typically happens, step by step.

the vet first examines the eye under magnification. they locate the lacrimal punctum, a tiny opening at the inner corner of the lower eyelid. this is the entry point for the instrument.

a fine blunt-tipped cannula is gently inserted into the punctum. the vet then slowly flushes a sterile saline solution through the cannula and down the duct toward the nose. the solution may have an antibiotic or anti-inflammatory agent added, depending on whether infection is present.

if the flush is working, solution will exit from the rabbit’s nostril on the same side. that is the sign that the duct has cleared. if the blockage is dense or the duct anatomy is very compressed, the vet may use gentle pressure, attempt a second pass, or refer you for imaging before the next attempt.

the flush itself takes about five to fifteen minutes. total appointment time, including preparation, recovery from sedation, and the post-procedure check, usually runs longer.

sedation: what most owners do not expect

most rabbits will not hold still for a cannula near their eye while fully conscious. the sudden movement reflex can cause injury. exotic vets in Singapore typically use light sedation or a short-acting general anaesthetic for this procedure.

rabbits are higher-risk anaesthetic patients than cats or dogs. their respiratory systems are sensitive and they can go into stress-induced cardiac events faster. a rabbit-experienced exotic vet knows these risks and adjusts the protocol accordingly.

before sedating your rabbit, the vet will usually check weight, heart rate, gut sounds, and respiratory condition. if dental disease is suspected, they may recommend skull X-rays to see how much root pressure is on the duct. those images influence both the flush plan and any follow-up dental treatment.

as of 2026, a nasolacrimal flush including sedation in Singapore typically costs between SGD 150 and SGD 400. the range depends on the clinic, the sedation protocol used, and whether X-rays or additional diagnostics are included. some clinics charge separately for a follow-up recheck visit. ask upfront so you can budget accordingly.

after the flush: what to do at home

most rabbits recover from light sedation within a few hours. keep your rabbit in a warm, quiet space for the rest of the day. do not let them free-roam until they are fully alert and moving steadily.

your vet will usually send you home with antibiotic eye drops or an ointment. use them on the schedule given, even if the eye looks clear after a day or two. stopping early risks the infection persisting inside the duct.

a few things to do at home in the days after:

  • gently wipe the area under the eye once or twice daily with a damp cloth to remove any remaining discharge
  • keep the fur around the eye as dry as possible; in Singapore’s humidity this takes deliberate effort
  • watch for any return of tearing, discharge, or skin redness
  • return for the scheduled recheck even if everything appears fine

if dental disease was identified as a contributing factor, increase hay to at least 80% of the total diet. hay wears down molars naturally and reduces the pressure that overgrown roots put on the duct.

note: if the skin under the eye becomes red, crusty, or starts weeping a different-coloured discharge within a day or two of the flush, contact your vet. a secondary skin infection can develop quickly in humid conditions.

how many flushes will your rabbit need

a single flush may be all that is needed if the blockage was caused by a one-off debris accumulation or a minor infection. but if the root cause is dental disease, the duct will likely re-block once the roots continue to press on it. some rabbits need a flush every few months. others need a flush once, followed by a dental correction procedure to remove the pressure source.

ask your vet directly: what caused this blockage? is it likely to recur? those two questions determine whether you are managing a one-time event or a long-term condition. knowing early helps you plan both the time commitment and the ongoing costs.

what owners often get wrong

treating it as a simple eye infection

watery eyes are often assumed to be conjunctivitis. owners reach for generic eye drops or products intended for other animals. those rarely address a structural duct blockage and can delay diagnosis by weeks.

waiting because the rabbit seems otherwise healthy

a rabbit with a blocked tear duct usually eats and moves normally. owners interpret this as a sign that the problem is minor. in Singapore’s humidity, the damp fur area can develop a secondary skin or fungal infection within days. do not delay beyond a few days after you first notice persistent tearing.

booking at a general clinic instead of an exotic vet

general practice vets may not carry nasolacrimal cannulas in rabbit sizes or may not be confident with rabbit sedation. this procedure needs a vet with rabbit-specific training and equipment. a cat-and-dog clinic is not the right setting for it.

clearing the blockage without investigating the cause

a flush solves the immediate problem. it does not treat the reason the duct blocked in the first place. owners who stop at the flush often return three months later with the same issue. ask your vet specifically about dental status and what, if anything, needs to be addressed to prevent recurrence.

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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