The short answer
The MDR1 (ABCB1) gene is the health fact every Border Collie owner must know: affected dogs can have serious reactions to normal doses of certain common drugs, so test your dog and tell your vet before any medication, sedation, or surgery. Beyond that, the breed sees Collie Eye Anomaly (CEA), epilepsy, hip dysplasia and joint issues, and deafness (highest in merle-to-merle breeding), plus a few rarer genetic conditions breeders test for. Border Collies are otherwise hardy and long-lived (about 12 to 15 years). Keep yours lean and well-exercised, know its DNA status, and enrol pet insurance early (roughly $40 to $80 per month in BC). This is general information, not veterinary advice.

MDR1: the one every owner must know
MDR1 (the multidrug resistance gene, also called ABCB1) is the single most important health fact for a Border Collie. Dogs with the mutation cannot properly clear certain drugs from the brain, so normal doses of some common medications can build up and cause serious, even life-threatening reactions. This is a herding-breed issue, and Border Collies are among the breeds affected.
Drugs that can be a problem for affected dogs include some parasite medications (notably high-dose ivermectin), the anti-diarrhoeal loperamide (Imodium), certain sedatives and anaesthetic agents, and some chemotherapy drugs. A dog can be clear, a carrier (one copy of the mutation), or affected (two copies), and status matters.
What to actually do is simple and it prevents the whole problem: have your Border Collie DNA-tested for MDR1 (a cheap cheek swab), and tell your vet the exact result, or test if the status is unknown, before any medication, sedation, dental, or surgery. Washington State University's Veterinary Clinical Pharmacology Laboratory is the long-standing reference lab and information source for MDR1 and safe drug alternatives. Keep the result on your dog's file. Your vet makes all the actual drug decisions; your job is to make sure they know the status.
Eyes: Collie Eye Anomaly
Collie Eye Anomaly (CEA) is an inherited eye condition present from birth, seen in Border Collies and related breeds, where parts of the eye do not develop normally. It ranges from mild forms with no noticeable effect on vision to more serious forms that can affect sight.
There is a DNA test, and responsible breeders screen for CEA, which is one of the reasons buying from health-testing breeders matters. For a rescue Border Collie you usually will not have the parents' results, so include an eye check in a routine vet exam and mention any signs of vision trouble. Most affected dogs live full lives, and knowing the status helps you and your vet monitor sensibly. The AKC Border Collie breed profile lists the recommended health screenings for the breed.
Epilepsy
Idiopathic epilepsy, seizures with no other identifiable cause and a believed genetic component, is seen in the breed and usually first appears in young to middle-aged adults. A seizure is frightening to witness, but many epileptic dogs live full, happy lives with the condition well managed on medication.
If your Border Collie has a seizure, note what you see and when, keep the dog safe from injury during the episode (clear the area, do not put hands near the mouth), and see your vet afterward. Your vet will investigate to rule out other causes and, if it is epilepsy, discuss whether and how to manage it, often with daily medication for dogs that seizure frequently. For most dogs it is a manageable lifelong condition, not a reason to give up on a wonderful companion.
Joints, deafness, and exercise-related conditions
Hip dysplasia and OCD. Hip dysplasia is seen in the breed, and osteochondritis (a joint-cartilage condition) can affect young, fast-growing, very active dogs. Because Border Collies are such intense athletes, keep yours lean (the best joint protection there is), vary the exercise rather than only repetitive high-impact activity during growth, and warm up and cool down around hard work. The OFA publishes breed hip statistics.
Deafness. Deafness appears in the breed, with the highest risk in dogs from merle-to-merle breeding, where double-merle puppies have much higher rates of congenital deafness and eye problems (a key reason responsible breeders never breed merle to merle). A deaf dog can live a completely happy life; Border Collies train beautifully to hand signals.
Border Collie Collapse (BCC). This episodic condition causes an intensely exercising dog to become disoriented or wobbly, typically after five to fifteen minutes of high-excitement, high-intensity activity, usually recovering within about half an hour. It is not simply overheating and is not a heart problem. If you see episodes like this, stop the activity, let the dog rest and cool, and see your vet to investigate, since several conditions look similar and a proper diagnosis matters.
A few rarer inherited conditions (such as trapped neutrophil syndrome and neuronal ceroid lipofuscinosis) exist in the breed, and responsible breeders DNA-test for them. They are uncommon, but they are another reason breeder health testing, or simply adopting and knowing your dog, matters.
The Border Collie health profile at a glance
| Concern | What it is | What helps |
|---|---|---|
| MDR1 (ABCB1) | Drug-sensitivity gene, serious reactions possible | DNA test, tell the vet before any medication or sedation |
| Collie Eye Anomaly | Inherited eye condition, mild to serious | DNA test, routine eye checks |
| Epilepsy | Idiopathic seizures, young-adult onset | Vet work-up, often well managed on medication |
| Hips / OCD | Joint conditions in an intense athlete | Keep lean, varied exercise, vet management |
| Deafness | Highest in merle-to-merle breeding | Hearing check, hand-signal training |
| Border Collie Collapse | Episodic wobble after intense exercise | Manage intensity, vet diagnosis |
Should I get pet insurance for my Border Collie?
It is well worth considering, and enrolling early is the key. Border Collies are generally healthy, but the genetic conditions (epilepsy in particular can mean lifelong medication) plus their athletic, injury-prone lifestyle mean vet bills do happen. BC pet insurance for a young, healthy Border Collie commonly runs roughly $40 to $80 per month.
The rule that catches everyone: anything already present becomes a pre-existing condition and is excluded, so enrol while your dog is young and healthy. For this breed, read policies carefully for how they handle hereditary and congenital conditions, since that is exactly where a Border Collie's risks sit. Budget roughly $1,800 to $3,500 per year in total care for a Border Collie in Vancouver.
To keep routine costs down, see our guides to low-cost vet options in Vancouver and affordable spay and neuter. And because so much of a Border Collie's wellbeing is about meeting its needs, our exercise and mental-stimulation guide is essential reading.
Ready to meet a Border Collie?
Browse adoptable Border Collies and BC mixes from Lower Mainland rescues. A rescue can tell you what a specific dog's health and energy have looked like in foster, and whether its MDR1 status is known. Refreshed regularly.
See Available Border Collies →Frequently Asked Questions
What health problems are Border Collies prone to?
Border Collies are generally a hardy, athletic breed, and most of the health story is genetic conditions to be aware of rather than a fragile dog. The single most important one is the MDR1 (also called ABCB1) gene mutation, which affects how a dog processes certain common medications and can cause serious reactions. Beyond that, the breed sees Collie Eye Anomaly (CEA), idiopathic epilepsy, hip dysplasia and osteochondritis, deafness (especially in merle-to-merle breeding), and a handful of rarer inherited conditions that responsible breeders test for. None of this makes a Border Collie a sickly dog; it makes DNA awareness, a good vet relationship, and pet insurance genuinely worthwhile. Always confirm specifics with your vet.
What is the MDR1 gene, and why does it matter so much?
MDR1 (the multidrug resistance gene, also called ABCB1) is the most important health fact for any Border Collie owner. Dogs with the mutation cannot properly clear certain drugs from the brain, so normal doses of some common medications can build up and cause serious, even life-threatening reactions. Affected drugs can include some parasite medications (notably high-dose ivermectin), the anti-diarrhoeal loperamide (Imodium), certain sedatives and anaesthetic agents, and some chemotherapy drugs. A simple cheek-swab DNA test tells you your dog's status. The critical action: tell your vet whether your Border Collie is MDR1-affected, or have it tested if unknown, before any medication, sedation, or surgery. Washington State University's veterinary pharmacology lab maintains the reference guidance on MDR1 and safe alternatives. This is general information; your vet makes the drug decisions.
Should I get my Border Collie tested for MDR1?
Yes, it is one of the most worthwhile tests you can do for the breed, because knowing the status changes how a vet medicates and sedates your dog. It is a simple, inexpensive cheek-swab DNA test, and Washington State University's Veterinary Clinical Pharmacology Laboratory is the long-standing reference lab and information source for it. A dog can be clear, a carrier (one copy), or affected (two copies), and even one copy can matter for some drugs, so share the exact result with your vet and keep it on the dog's file. If you adopt a Border Collie of unknown status, testing removes the guesswork before any routine procedure, dental, spay or neuter, or parasite treatment.
What is Collie Eye Anomaly (CEA)?
Collie Eye Anomaly is an inherited eye condition seen in Border Collies and related breeds, present from birth, where parts of the eye do not develop normally. It ranges widely, from mild forms that do not noticeably affect vision to more serious ones that can cause vision problems. There is a DNA test, and responsible breeders screen for it, which is why buying from health-testing breeders matters. For a rescue Border Collie you usually will not have the parents' results, so have the eyes checked as part of a routine vet exam and mention any signs of vision trouble. Most affected dogs live full lives, and knowing the status helps you and your vet monitor sensibly.
Do Border Collies get epilepsy?
Idiopathic epilepsy (seizures with no other identifiable cause, believed to have a genetic component) is seen in the breed. It typically first appears in young to middle-aged adults. A seizure is frightening to witness but many epileptic dogs live full, happy lives with the condition well managed on medication. If your Border Collie has a seizure, note what you see and when, keep the dog safe from injury during it, and see your vet, who will investigate to rule out other causes and, if it is epilepsy, discuss whether and how to manage it. It is a manageable condition for most dogs, not a reason to give up on a wonderful companion.
Are Border Collies prone to hip dysplasia and joint problems?
Hip dysplasia is seen in the breed, and osteochondritis (OCD, a joint-cartilage condition) can affect young, fast-growing, very active dogs. Because Border Collies are such intense athletes, joint care matters. Keep your dog lean, which is the single best protection for the joints; provide sensible, varied exercise rather than only repetitive high-impact activity, especially during growth; and warm up and cool down around hard activity or dog sports. The OFA publishes breed hip statistics and reputable breeders clear the parents. In a rescue dog, watch for limping or stiffness and raise it with your vet, who can recommend management from supplements and weight control up to surgery for serious cases.
Can Border Collies be deaf?
Deafness appears in the breed, and the risk is highest in dogs from merle-to-merle breeding, where "double merle" puppies have much higher rates of congenital deafness (and eye problems). This is a big reason responsible breeders never breed merle to merle. A hearing check is worthwhile if there is any doubt, and it is easy for a vet to assess. Importantly, a deaf dog can live a completely happy, full life: Border Collies are highly trainable, and hand-signal and vibration-based training works very well with them. Many deaf Border Collies are wonderful, capable companions. If you adopt one, it is about sensible management and a bit of training adjustment, not a limitation on the dog's quality of life.
What is Border Collie Collapse?
Border Collie Collapse (BCC), sometimes called exercise-induced collapse in the breed, is an episodic neurological condition where an intensely exercising dog becomes disoriented, wobbly, or unable to stand, usually after five to fifteen minutes of high-excitement, high-intensity activity. Dogs typically recover within about half an hour. It is not the same as overheating, though heat can make things worse, and it is not a heart problem. If you see episodes like this in your Border Collie during hard exercise, stop the activity, let the dog rest and cool, and see your vet to investigate, since several conditions can look similar and a proper diagnosis matters. Managing triggers and intensity is the usual approach for affected dogs.
How long do Border Collies live, and how do I give mine the best odds?
Border Collies are a long-lived, hardy breed and commonly reach around 12 to 15 years. You influence that a lot: keep your dog lean, provide the substantial physical and mental exercise the breed needs (without over-doing repetitive high-impact activity), know the MDR1 status so medications are always safe, stay current on vet check-ups and dental care, and act promptly on any seizure, vision change, limping, or collapse episode. A lean, well-exercised, mentally satisfied Border Collie whose owner knows its MDR1 status and does not delay on warning signs has excellent odds of a long, healthy life.
Is pet insurance worth it for a Border Collie?
It is well worth considering, and as always the key is to enrol early, before anything becomes a pre-existing condition. Border Collies are generally healthy, but the genetic conditions (epilepsy in particular can mean lifelong medication, and eye or joint issues can need specialist care) plus their athletic, injury-prone lifestyle mean vet bills do happen. BC pet insurance for a young, healthy Border Collie commonly runs roughly $40 to $80 per month. Read policies for how they handle hereditary and congenital conditions, since that matters for this breed, and enrol while your dog is young and healthy. Budget roughly $1,800 to $3,500 per year for a Border Collie in Vancouver in total care.
The full Border Collie cluster
Border Collie Adoption in Vancouver
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Border Collie Exercise & Mental Stimulation
The number one thing that makes or breaks a Border Collie adoption, and how to get it right in Vancouver.
Adoptable Border Collies in Vancouver
All currently available Border Collies and BC mixes. Updates regularly.
Low-Cost Vet Options in Vancouver
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New dog? Start with these care guides
Everything a new adopter needs to set up a safe, happy home.