Coton de Tulear Health Problems: Conditions to Watch

Yes, the Coton de Tulear does have health problems it is prone to, and if you are watching something right now, a limp, a cloudy eye, relentless scratching, a head shake that will not stop, the right next step is a veterinary exam rather than a search result. A hands-on physical is the only thing that turns a vague worry into a name and a plan.

With that said, the Coton is a hardy little companion dog by small breed standards. The conditions it tends toward are the ones you would expect in a light-boned, long-coated, drop-eared dog: kneecaps that slip, hips and growth plates that can go wrong while a puppy is still growing, inherited eye changes, allergic skin, ears that trap moisture, and crowded teeth. A smaller number of Cotons carry an inherited neurological condition that shows up very early in life. Knowing the shortlist means you catch things while they are still small problems.

The conditions this breed is known to be prone to

The table below is a quick orientation, not a diagnosis. Many of these signs overlap, which is exactly why a vet sorts them out rather than an owner.

Condition	What it involves	What owners usually notice	How a vet approaches it
Luxating patella	The kneecap slips out of its groove	Skipping steps, holding a back leg up briefly, then carrying on normally	Orthopaedic palpation, grading of the knee, imaging if needed
Hip dysplasia	Poorly fitting hip joint	Bunny-hopping run, stiffness after rest, reluctance to jump	Hip palpation and radiographs, often under sedation
Femoral head problems in young small dogs	Loss of blood supply to the top of the thigh bone	Growing puppy going lame on one back leg, muscle wasting on that side	Radiographs and an orthopaedic workup
Inherited retinal degeneration	The retina gradually loses function	Hesitation in dim light, bumping into things, wide pupils	Ophthalmic exam, referral to a veterinary ophthalmologist
Cataracts	Clouding of the lens	A grey or white haze in the pupil, loss of confidence in new places	Eye exam to separate cataract from normal ageing change
Allergic skin disease	Overreaction to environmental or dietary triggers	Paw licking, face rubbing, pink belly, recurring skin infections	Skin cytology, parasite control, a vet-directed elimination plan
Ear infections	Inflammation in a hairy, drop-eared canal	Head shaking, odour, scratching at one ear, redness	Otoscopic exam and a swab to identify what is growing
Dental crowding	Small jaw, full set of teeth	Bad breath, tartar, reluctance to chew on one side	Oral exam and dental radiographs under anaesthesia
Heart murmur	Turbulent flow across a valve	Often none at first, sometimes coughing or tiring early	Stethoscope exam at check-ups, imaging if a murmur appears
Inherited ataxia in some lines	A neurological condition affecting coordination	A very young puppy that cannot walk steadily, tremors when it tries	Neurological exam and veterinary guidance

Knees, hips and the orthopaedic picture

The kneecap is the one to understand first. In a healthy knee it rides in a groove at the end of the thigh bone. In many small breeds that groove is shallower than ideal, and the kneecap slides out to the inside. The classic picture is a dog that is trotting happily, skips a step or two with one back leg held up, then drops the leg and carries on as if nothing happened. Owners often describe it as a hiccup in the gait rather than a limp, and because the dog seems fine in between, the appointment gets postponed.

It is worth making anyway. A vet can feel how far the kneecap moves and grade it, and that grade shapes everything that follows, from weight and exercise advice to whether a surgeon should look at it. A loose kneecap also changes how the whole back leg loads, which puts extra strain on the cruciate ligament over time.

Hips matter too. Hip dysplasia is usually associated with big dogs, but small breeds get it, and a Coton with a poorly shaped hip socket may bunny-hop when it runs or take a few stiff steps after a nap. Separately, young small-breed dogs can lose the blood supply to the top of the thigh bone while they are still growing, which causes a limp that gets worse rather than better and often some visible muscle loss on that leg. That one needs prompt veterinary attention because a growing dog does not wait.

Any limp that is still there after a day or two, any limp in a growing puppy, and any back leg your dog refuses to put weight on is a reason to book a veterinary exam rather than wait it out.

Treatment depends entirely on what is found. Some dogs do well with body condition management, controlled exercise and a rehabilitation plan. Others need surgery. Results vary from dog to dog, and the only person who can tell you which path fits yours is the vet who has examined the joint.

Eye conditions to keep watch on

The Coton de Tulear belongs to a group of breeds where inherited retinal degeneration appears. The retina slowly loses its ability to respond to light, and night vision usually goes first. The early signs are subtle: a dog that hesitates at the bottom of the stairs in the evening, hangs back on a dark walk, bumps a table leg it has walked past a thousand times, or keeps its pupils wide in normal room light. Dogs compensate beautifully, so families often only notice when the furniture gets rearranged.

Cataracts are the other eye change to watch. A lens that is turning cloudy looks like a grey or white film inside the pupil. Not every haze is a cataract, which is why an eye exam matters: your vet can separate normal age-related lens change from something that needs an ophthalmologist.

Some Cotons also produce too little tear film, leaving the eye dry, red and sticky with discharge. And any eye that is suddenly painful, squinting, cloudy, bloodshot or held shut is an urgent problem, not a morning-after problem. Eyes lose ground quickly. If you are unsure, talk to your vet the same day.

Skin, coat and ears under all that white hair

Allergic skin disease is one of the more frequent reasons a Coton ends up at the clinic. The dog reacts to something in its environment or diet, and the result is itch: licking the front paws until the hair stains rust, rubbing the face on carpet, scratching the belly and armpits, scooting, or a skin smell that comes back every few weeks. Chronic itch almost always picks up secondary bacterial or yeast overgrowth, which adds its own itch on top of the original one.

This is not a problem to work through alone. A vet starts by ruling out parasites, looks at the skin surface under a microscope, treats any infection that is present and then works out the underlying trigger. Diet trials only give a useful answer when a veterinarian designs them, because a single off-plan treat can undo weeks of work.

Ears follow the same story. A drop ear with hair in the canal holds warmth and moisture, which is a comfortable environment for yeast and bacteria. Head shaking, scratching at one ear, a brown discharge, a sour odour or a dog that flinches when you touch the side of its head all point at the ear canal. Repeated ear infections are also one of the ways allergic skin disease announces itself, so if your Coton keeps getting them, say so at the appointment. A pattern is more informative than a single episode.

The coat itself needs attention because mats hold damp against the skin and hide what is happening underneath. Regular grooming is less about appearance than about being able to see your dog.

Other conditions worth having on your radar

A small number of Cotons carry an inherited neurological condition affecting coordination that appears in very young puppies. Affected pups cannot get their legs organised, tremble when they try to move and fall over repeatedly. A puppy that is not walking normally when its littermates are needs a veterinary neurological exam, not time.

Small breeds in general are also worth monitoring for liver blood flow abnormalities present from birth, which can show up as poor growth, a dull or disoriented spell after meals, or odd behaviour in a young dog. Crowded teeth are near universal in a mouth this size, and dental disease is one of the quietest sources of chronic discomfort there is, so ask for an oral check at every visit. Heart murmurs are picked up with a stethoscope long before an owner notices anything, which is one more argument for routine wellness exams even when your dog seems perfectly well.

New lumps, bumps or swellings should always be checked. Only a sample taken by a vet can tell you what a lump actually is, and guessing from the outside is not possible.

When to book, and when to go now

Book a routine or soon appointment for: a limp that persists or recurs, a skipping gait, stiffness after rest, itching or ear trouble that keeps returning, tear staining with redness, cloudiness in an eye, bad breath or reluctance to chew, a new lump, unexplained weight change, or a dog that has quietly stopped doing something it used to enjoy.

Go to emergency care for: difficulty breathing, collapse, a seizure, a suddenly painful or swollen abdomen, repeated vomiting, straining to urinate with nothing produced, sudden blindness, a painful eye, a non-weight-bearing leg after a fall, uncontrolled bleeding, or any suspicion your dog has eaten something toxic. For a suspected poisoning, call your veterinarian or an animal poison control service such as the ASPCA Animal Poison Control Center or the Pet Poison Helpline straight away.

Key Takeaways

• The Coton de Tulear is generally a sturdy small breed, but it is prone to luxating patellas, hip and femoral head problems, inherited eye disease, allergic skin and recurring ear infections.
• A skipping gait or a briefly lifted back leg is a knee sign worth an exam, even if your dog seems fine seconds later.
• Night-time hesitation, bumping into familiar objects and wide pupils can be early signs of retinal change and deserve an eye exam.
• Paw licking, face rubbing and ears that keep flaring are usually one problem, not three, and benefit from a veterinary workup rather than repeated short-term fixes.
• A puppy that cannot walk steadily when littermates can needs a neurological exam without delay.
• Routine wellness visits catch murmurs, dental disease and joint changes long before an owner would.

For a wider rundown of the signs that mean same-day or emergency attention in any breed, see Dog Emergency Signs.

Your veterinarian owns the diagnosis and the treatment plan for your Coton de Tulear. Everything else, grooming, body condition, exercise choices and how closely you watch for the early signs listed here, works in the space that proper veterinary care creates. If something about your dog has changed and you cannot explain it, talk to your vet and bring your notes with you.