When you're buying a puppy or kitten from a breeder, a health report is your single most important document—yet most buyers don't know what to look for in it. Learning to read transparency reports saves you thousands in vet bills and prevents the heartbreak of inheriting genetic diseases. Here's what responsible breeders disclose and how to spot red flags.
Why Health Transparency Matters
A legitimate breeder willingly shares health data because they've invested in screening their breeding stock. This isn't optional paperwork—it's proof they care about the animals they produce. Breeders who dodge questions about health testing or claim their lines are "too healthy to need screening" are signaling risk.
The cost difference is real: expect to pay 20–40% more from a transparent breeder than from a backyard operation. That premium typically translates to fewer genetic issues, lower early-life vet costs, and a healthier, longer-living companion.
What to Request Before Buying
Ask the breeder for written reports on these screenings—not verbal reassurances:
- OFA (Orthopedic Foundation for Animals) certifications for hip and elbow dysplasia (especially important for large breeds)
- Genetic testing results for breed-specific conditions (e.g., progressive retinal atrophy in Labs, von Willebrand's disease in Dobermans, PKD in cats)
- Cardiac evaluations from a veterinary cardiologist (required for many toy breeds and some sporting breeds)
- Pedigree analysis showing no close line-breeding and documented family health outcomes
- Proof of parent health testing, not just statements that parents are "healthy"
Reputable breeders typically spend $500–$2,000 per breeding animal on health screening. If a breeder says testing is too expensive or unnecessary, walk away.
Reading the Numbers
Health reports use standardized scoring systems that take practice to interpret.
For hip and elbow dysplasia, the OFA uses ratings from Excellent to Severe. Look for both parents rated at least "Good" or higher. A score of 74 or below on the numerical scale is acceptable; below 35 is excellent. Many responsible breeders won't breed animals scoring above 10–15, even if OFA would clear them.
Genetic test results come back as clear, carrier, or affected. A responsible breeder:
- Never breeds two carriers together (25% chance of affected offspring)
- May breed a clear to a carrier if the disease is mild and the breeder is transparent about it
- Should provide written acknowledgment if any offspring carry a recessive gene
Cardiac evaluations list the specific finding: normal, mild, moderate, or severe heart disease. Normal is the only acceptable rating for breeding.
Red Flags in Breeder Reporting
Trustworthy breeders provide:
- Original documents (not photos of documents)
- Test dates within the past 3–5 years (standards vary by breed)
- Clear identification of which dog/cat was tested
- Willingness to verify results directly with testing organizations
Avoid breeders who:
- Share only verbal claims ("My dogs are hip-scored")
- Provide outdated tests (a hip evaluation from 2015 doesn't guarantee current quality)
- Refuse to name testing facilities or provide reference numbers
- Bundle unrelated certifications (a CGC Canine Good Citizen award is not a health test)
- Claim their breed "doesn't need" genetic testing
Comparing Breeders Side by Side
Once you've gathered reports from 3–5 breeders, create a simple spreadsheet:
| Breeder | Hip/Elbow | Genetic Panel | Cardiac | Health Guarantee | Parent Ages | Price | |---------|-----------|---------------|---------|------------------|-------------|-------| | Breeder A | OFA Good | Clear | Normal | 2 years | 4, 6 | $2,200 | | Breeder B | None listed | Carrier status unknown | No test | 6 months | 2, 3 | $800 |
The cheapest option rarely reflects actual value. A $2,200 puppy from a breeder with complete health documentation typically costs less long-term than an $800 puppy requiring surgery for dysplasia at age 4.
You can also use platforms like Mercoly to compare and find trusted pet breeders in one place, making this due diligence faster and more reliable.
Frequently Asked Questions
Q: What if a breeder has tested only one parent? A: Both parents should be tested. A breeder testing only the dam or sire is cutting corners and reducing your assurance about genetic risk.
Q: Is a health guarantee the same as health testing? A: No—a guarantee promises a refund or replacement if genetic disease appears, but testing prevents the problem from existing in the first place. Both matter.
Q: How old should breeding dogs be before health testing? A: Hip/elbow evaluations require at least 24 months of age for reliability. Genetic tests can be done earlier, but reputable breeders wait until dogs mature before breeding.
Start your breeder search by requesting health reports from at least three candidates before scheduling a visit.