Soft Coated Wheaten Terrier Stud Dog Guide: Protein-Losing Diseases & Health Testing

The Soft Coated Wheaten Terrier is a joyful, exuberant breed — but it carries a serious hereditary disease burden that demands thorough testing before any breeding. This is a breed where skipping health tests has life-and-death consequences.

The Soft Coated Wheaten Terrier (SCWT) is an Irish working terrier — adaptable, fun-loving, and moderately sized at 30–45 lbs. They are popular family dogs, known for their silky, non-shedding wheat-coloured coat and enthusiastic greetings. However, the breed faces two serious hereditary diseases that affect the kidneys and intestines, and any stud dog must be fully evaluated for these conditions.

The Protein-Losing Diseases — The Most Critical Health Issue in Wheatens

Two conditions specific to the Wheaten are protein-losing nephropathy (PLN) and protein-losing enteropathy (PLE). Both are serious, often fatal, and heritable.

Protein-Losing Nephropathy (PLN)

PLN causes progressive kidney disease — protein leaks through damaged kidneys into the urine. Affected dogs lose muscle mass, develop fluid retention, and eventually go into kidney failure. Most affected dogs do not survive past middle age.

Urine protein testing (UPC ratio) should be done annually on every breeding Wheaten. A UPC ratio above 0.5 is abnormal and requires further investigation. DNA markers associated with PLN risk are being studied, but urine testing remains the primary screening tool.

Protein-Losing Enteropathy (PLE)

PLE causes protein loss through the digestive tract. Symptoms include weight loss, chronic diarrhoea, and fluid accumulation. Like PLN, PLE has a hereditary component and is more common in Wheatens than in most other breeds.

Before using any Wheaten stud, request documentation of annual protein screening (urine and faecal protein) and ask about the health history of first-degree relatives.

Renal Dysplasia

Abnormal kidney development occurs in some Wheaten lines. Puppies with severe renal dysplasia rarely survive beyond their first year. Selecting against lines with renal dysplasia history is essential.

Additional Health Testing

Hip Evaluation (OFA)

OFA Fair or better is the minimum for a breeding male.

Eye Certification (CAER)

Annual CAER exam. PRA occurs in the breed.

Coat Genetics

The Wheaten comes in Irish coat and Heavy coat (American) types — the Irish coat is silkier and lighter, the American coat is thicker and fuller. Both are correct within their respective standards, but mixing types produces unpredictable coat texture in offspring.

Stud Fees for Soft Coated Wheaten Terriers

Wheaten stud fees typically range from $800 to $1,800:

• Health-tested male with annual protein screening, OFA, CAER: $800–$1,400
• AKC champion with full health documentation: $1,200–$1,800

Summary

The Soft Coated Wheaten Terrier's most serious health issue is protein-losing disease (PLN and PLE). Annual urine protein testing is mandatory for any breeding male. OFA hip evaluation and CAER eye certification complete the standard panel. Ask explicitly about protein screening history and family health records — this is a breed where due diligence on these conditions is not optional.