The short answer
Learn the vague, come-and-go signs of Addison’s disease, and treat sudden collapse with vomiting as an emergency. Have the eyes checked and keep the dog lean for its hips. If you adopt a puppy, ask about the DNA tests for juvenile heart disease and GM1 storage disease in its parents. Price pet insurance in your first week.
What the breed club screens for
The Portuguese Water Dog Club of America recommends hip and eye evaluations and DNA tests for GM1 storage disease, juvenile dilated cardiomyopathy, two forms of progressive retinal atrophy and microphthalmia. A rescue dog rarely comes with those results, but the list tells you where the breed’s risks lie.
Browse adoptable Portuguese Water Dogs
Ask the rescue for any breeder health results, especially the DNA tests the breed club recommends.
See Available Portuguese Water Dogs →Addison’s disease
Addison’s disease means the adrenal glands do not make enough hormones, and VCA Animal Hospitals names the Portuguese Water Dog among predisposed breeds. Signs are often vague and come and go: tiredness, vomiting or diarrhea, more drinking and urinating, and weight loss.
A sudden crisis with severe weakness, heavy vomiting and diarrhea or collapse is a medical emergency. Once diagnosed, ongoing treatment lets most dogs live normal lives. If your dog has repeated vague bouts of feeling unwell, ask your vet whether to test for it.
Juvenile heart disease and GM1
Juvenile dilated cardiomyopathy is an inherited heart-muscle disease of young puppies. A study of affected Portuguese Water Dog puppies found it consistent with recessive inheritance, and only an echocardiogram detected affected puppies before signs appeared, one to four weeks before heart failure. Adult dogs are past the age of risk; this matters most when adopting a young puppy.
GM1 storage disease is an inherited nervous-system disease with a DNA test, and like juvenile heart disease it is controlled through breeder testing. Ask about the parents’ results if you adopt a puppy. Cornell also names the breed for dilated cardiomyopathy, so heart checks matter at every age.
Eyes and hips
Progressive retinal atrophy, a painless inherited loss of vision that starts with poor night vision, is on the club’s DNA-test list. A dog that hesitates in dim light or bumps into things deserves an eye exam.
Hip dysplasia occurs in active, medium-sized breeds; a lean weight and steady exercise protect the joints, as VCA explains. Swimming is ideal exercise for most PWDs.
The first vet visit after adoption
Ask for a heart listen, an eye exam, a hip check, a body condition score and baseline bloodwork, which gives a reference point if Addison’s is ever suspected. Bring the rescue’s records and any breeder health results.
Price pet insurance the same week. Every Canadian provider excludes conditions documented before enrolment, and Addison’s is a lifelong cost that is easier to cover before diagnosis.
Frequently asked questions
What are the most common Portuguese Water Dog health issues?
Addison’s disease, progressive retinal atrophy, hip dysplasia and, in young puppies, juvenile dilated cardiomyopathy and GM1 storage disease, which have DNA tests.
What health tests does the Portuguese Water Dog breed club recommend?
Hip and eye evaluations plus DNA tests for GM1 storage disease, juvenile dilated cardiomyopathy, two forms of PRA and microphthalmia.
What are the signs of Addison’s disease?
Vague signs that come and go, including tiredness, vomiting, diarrhea, more drinking and weight loss. A sudden collapse with severe vomiting is an emergency.
Is juvenile heart disease a risk for an adult rescue PWD?
It affects young puppies, so an adult is past that window. Heart checks at every visit are still worthwhile.
Are Portuguese Water Dogs hypoallergenic?
No dog is truly allergen-free, but their low-shedding curly coat suits some people with mild allergies. Spend time with the dog before adopting.
Should I get pet insurance for a rescue Portuguese Water Dog?
It is worth pricing in your first week. Canadian pet insurance excludes conditions documented before enrolment, and Addison’s and eye disease are long-term costs.
Sources
- Portuguese Water Dog Club of America: Breeder health testing: hips, eyes, GM-1, JDCM, prcd-PRA, EOPRA, MOS
- VCA Animal Hospitals: Addison’s Disease in Dogs: Portuguese Water Dog named; signs; crisis is an emergency
- Dilated cardiomyopathy in juvenile Portuguese Water Dogs (PMC): recessive inheritance; echocardiography detects affected puppies before signs
- Cornell University Riney Canine Health Center: Dilated Cardiomyopathy: Portuguese Water Dog named
- VCA Animal Hospitals: Hip Dysplasia in Dogs: weight and exercise advice
General information, not veterinary advice. Diagnosis and treatment decisions belong with your veterinarian.
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