If you’re planning to breed your Labrador, health testing isn’t optional — it’s the most important thing you can do before any pairing is considered. Labradors have well-documented heritable conditions that conscientious breeders have been working to reduce for decades. Skipping the tests doesn’t make the risk go away; it just means you’re passing it on to the puppies, and eventually to the owners who take them home.
This guide covers the core OFA (Orthopedic Foundation for Animals) tests recommended for Labradors, what each one screens for, and what the results mean in practice.
The core tests for Labrador Retrievers
Hip evaluation
Hip dysplasia — abnormal development of the hip joint — is one of the most common heritable conditions in Labradors. OFA hip evaluation involves radiographs taken when the dog is at least 24 months old (the minimum age for a permanent rating), assessed by three independent radiologists. Results are graded Excellent, Good, Fair, Borderline, Mild, Moderate, or Severe. Reputable breeders breed only from dogs rated Excellent, Good, or Fair.
The PennHIP method is an alternative that can be done from 16 weeks and some breeders consider it more predictive — both are accepted, and PennHIP results are expressed differently (as a distraction index rather than a grade).
Elbow evaluation
Elbow dysplasia — a group of developmental conditions affecting the elbow joint — is also highly prevalent in Labs. OFA elbow evaluation uses radiographs to grade elbows as Normal, Grade I, Grade II, or Grade III dysplasia. Both elbows are evaluated. Only dogs with Normal elbow grades should be bred.
Eye examination (CAER/OFA Eye)
An annual eye exam by a board-certified veterinary ophthalmologist screens for heritable eye conditions including progressive retinal atrophy (PRA) and hereditary cataract. Unlike hips and elbows, eye clearances are not permanent — they expire annually because some conditions develop over time. A current eye clearance (within 12 months of breeding) is required.
EIC DNA test (Exercise-Induced Collapse)
EIC is a recessive condition in which affected dogs collapse during or after intense exercise. It’s caused by a specific mutation in the DNM1 gene. DNA testing gives a definitive result: Clear (no copies of the mutation), Carrier (one copy, unaffected but can pass it on), or Affected (two copies, will show the condition). A carrier bred to a clear dog produces no affected puppies — but two carriers should not be bred together.
D locus (dilute) DNA test
This test identifies whether a dog carries the dilute gene responsible for charcoal, silver, and champagne coat colours in Labradors. These colours are controversial within the breed — they’re not recognised by major kennel clubs and are associated with a condition called Colour Dilution Alopecia in some dogs. Many Lab breeders test for this to make informed decisions about pairings.
Additional recommended tests
- CNM (Centronuclear Myopathy): A muscle disease that causes progressive weakness. DNA test, recessive inheritance — same carrier/clear/affected logic as EIC.
- HNPK (Hereditary Nasal Parakeratosis): Causes chronic crusting of the nose. DNA test available.
- prcd-PRA (Progressive Rod-Cone Degeneration): A specific form of PRA causing progressive blindness. DNA test; recessive.
- Cardiac evaluation: OFA cardiac exam by a cardiologist recommended by many breed clubs, particularly for working lines.
How to verify health tests
All OFA results for registered dogs are publicly searchable at ofa.org. If a breeder claims their dogs are health tested, you can verify it independently. For DNA tests, certificates should be available from an accredited laboratory. Reputable breeders will share this information freely and without hesitation.
My take: minimum standards vs best practice
The minimum responsible standard for Labrador breeding is hips, elbows, eyes, and EIC. The best practice includes the full suite above. Health testing costs money and time — which is why it’s often skipped by backyard breeders and puppy farms. The presence or absence of complete health testing on both parents is one of the clearest signals of whether a breeder is genuinely invested in the breed’s health or just in the sale.
If you’re a buyer rather than a breeder, this list also tells you exactly what to ask for when evaluating a litter.
People also ask about Labrador OFA testing
At what age can Labradors be OFA tested for hips?
Preliminary hip evaluations can be done from 12 months, but the permanent OFA rating requires the dog to be at least 24 months old. Many breeders do a preliminary at 12–18 months to get an early indication, then confirm with the permanent rating before breeding.
Can a dog with hip dysplasia be bred?
Most breed clubs and responsible breeders would say no — only dogs rated Excellent, Good, or Fair should be bred. A dog with a Borderline or dysplastic rating significantly increases the risk of hip problems in offspring, even if paired with an Excellent-rated partner.
What’s the difference between OFA and PennHIP?
OFA uses a single extended-position radiograph assessed at 24 months and gives a descriptive grade. PennHIP uses multiple views taken in distraction, can be done from 16 weeks, and gives a distraction index (DI) — a numerical score where lower is better. Both are valid; PennHIP has some advantages in early screening and predictive accuracy. Many serious breeders use both.
“, “rendered”: ”If you’re planning to breed your Labrador, health testing isn’t optional — it’s the most important thing you can do before any pairing is considered. Labradors have well-documented heritable conditions that conscientious breeders have been working to reduce for decades. Skipping the tests doesn’t make the risk go away; it just means you’re passing it on to the puppies, and eventually to the owners who take them home.
This guide covers the core OFA (Orthopedic Foundation for Animals) tests recommended for Labradors, what each one screens for, and what the results mean in practice.
The core tests for Labrador Retrievers
Hip evaluation
Hip dysplasia — abnormal development of the hip joint — is one of the most common heritable conditions in Labradors. OFA hip evaluation involves radiographs taken when the dog is at least 24 months old (the minimum age for a permanent rating), assessed by three independent radiologists. Results are graded Excellent, Good, Fair, Borderline, Mild, Moderate, or Severe. Reputable breeders breed only from dogs rated Excellent, Good, or Fair.
The PennHIP method is an alternative that can be done from 16 weeks and some breeders consider it more predictive — both are accepted, and PennHIP results are expressed differently (as a distraction index rather than a grade).
Elbow evaluation
Elbow dysplasia — a group of developmental conditions affecting the elbow joint — is also highly prevalent in Labs. OFA elbow evaluation uses radiographs to grade elbows as Normal, Grade I, Grade II, or Grade III dysplasia. Both elbows are evaluated. Only dogs with Normal elbow grades should be bred.
Eye examination (CAER/OFA Eye)
An annual eye exam by a board-certified veterinary ophthalmologist screens for heritable eye conditions including progressive retinal atrophy (PRA) and hereditary cataract. Unlike hips and elbows, eye clearances are not permanent — they expire annually because some conditions develop over time. A current eye clearance (within 12 months of breeding) is required.
EIC DNA test (Exercise-Induced Collapse)
EIC is a recessive condition in which affected dogs collapse during or after intense exercise. It’s caused by a specific mutation in the DNM1 gene. DNA testing gives a definitive result: Clear (no copies of the mutation), Carrier (one copy, unaffected but can pass it on), or Affected (two copies, will show the condition). A carrier bred to a clear dog produces no affected puppies — but two carriers should not be bred together.
D locus (dilute) DNA test
This test identifies whether a dog carries the dilute gene responsible for charcoal, silver, and champagne coat colours in Labradors. These colours are controversial within the breed — they’re not recognised by major kennel clubs and are associated with a condition called Colour Dilution Alopecia in some dogs. Many Lab breeders test for this to make informed decisions about pairings.
Additional recommended tests
- CNM (Centronuclear Myopathy): A muscle disease that causes progressive weakness. DNA test, recessive inheritance — same carrier/clear/affected logic as EIC.
- HNPK (Hereditary Nasal Parakeratosis): Causes chronic crusting of the nose. DNA test available.
- prcd-PRA (Progressive Rod-Cone Degeneration): A specific form of PRA causing progressive blindness. DNA test; recessive.
- Cardiac evaluation: OFA cardiac exam by a cardiologist recommended by many breed clubs, particularly for working lines.
How to verify health tests
All OFA results for registered dogs are publicly searchable at ofa.org. If a breeder claims their dogs are health tested, you can verify it independently. For DNA tests, certificates should be available from an accredited laboratory. Reputable breeders will share this information freely and without hesitation.
My take: minimum standards vs best practice
The minimum responsible standard for Labrador breeding is hips, elbows, eyes, and EIC. The best practice includes the full suite above. Health testing costs money and time — which is why it’s often skipped by backyard breeders and puppy farms. The presence or absence of complete health testing on both parents is one of the clearest signals of whether a breeder is genuinely invested in the breed’s health or just in the sale.
If you’re a buyer rather than a breeder, this list also tells you exactly what to ask for when evaluating a litter.
People also ask about Labrador OFA testing
At what age can Labradors be OFA tested for hips?
Preliminary hip evaluations can be done from 12 months, but the permanent OFA rating requires the dog to be at least 24 months old. Many breeders do a preliminary at 12–18 months to get an early indication, then confirm with the permanent rating before breeding.
Can a dog with hip dysplasia be bred?
Most breed clubs and responsible breeders would say no — only dogs rated Excellent, Good, or Fair should be bred. A dog with a Borderline or dysplastic rating significantly increases the risk of hip problems in offspring, even if paired with an Excellent-rated partner.
What’s the difference between OFA and PennHIP?
OFA uses a single extended-position radiograph assessed at 24 months and gives a descriptive grade. PennHIP uses multiple views taken in distraction, can be done from 16 weeks, and gives a distraction index (DI) — a numerical score where lower is better. Both are valid; PennHIP has some advantages in early screening and predictive accuracy. Many serious breeders use both.
OFA results are the first thing to ask a breeder about — see our Labrador breeder questions guide. Hip scoring is the most important OFA test — read our guide to how to tell if a Labrador has hip dysplasia. Elbow testing is equally essential — see our Labrador elbow dysplasia guide.
My Take on Labrador OFA Tests Before Breeding
OFA testing is one of those areas where the breeding community has genuinely made progress over the past few decades — and buyers who ask for documentation are part of what keeps that progress moving. A breeder who tests their dogs and makes the results public is making a statement about their priorities. A breeder who says their dogs are ‘healthy’ without documentation is giving you nothing you can verify. The difference matters enormously for the puppy you’ll live with for the next 12 years.
FAQ
What are the main OFA tests for Labradors?
Hips (OFA rating or PennHIP), elbows (OFA), eyes (CAER exam through a veterinary ophthalmologist), and cardiac screening are the core tests. DNA tests for EIC (Exercise Induced Collapse), PRA (progressive retinal atrophy), and HNPK are also recommended by the Labrador Retriever Club.
Can I verify a Lab breeder’s OFA results online?
Yes. The OFA database (ofa.org) is public — you can search by the dog’s registered name or OFA number. This is one of the most useful tools available to puppy buyers. If a breeder’s dogs aren’t in the database, that’s information worth having.
Is OFA testing a guarantee that a puppy will be healthy?
No. Health testing significantly improves the odds but doesn’t eliminate all risk. Some conditions aren’t covered by current tests; others may develop despite clear parents. Testing is best understood as reducing risk and improving overall breed health, not as an absolute guarantee.