Cystinuria (Miniature Pinscher) in Dogs

What does cystinuria look like in dogs?

Symptoms of cystinuria include difficulty urinating, straining when urinating, and blood in the urine. Dogs suffering from cystinuria may only be able to pass small amounts of urine at a time. If left untreated, dogs with cystinuria can be susceptible to urinary tract infections, kidney infections, and even death. Definitive diagnosis is available through DNA testing of the SLC7A9 gene. Getting your vet involved now is important. If you want to talk it through first, our vets can help you understand what questions to ask and what tests might be useful.

What should I do if my dog has been diagnosed with cystinuria?

Cystinuria can be treated with prescription diets and medications that aim to lower the acidity of the urine, making it harder for cystine crystals to form. If stones are blocking the urinary tract, there are both non-surgical and surgical procedures that can help. Keep a log of symptoms and any side effects from medications — this helps your vet fine-tune the treatment plan over time. Our vets can walk you through the management options and help you feel more confident about the path forward.

Is cystinuria in dogs treatable?

Cystinuria is treatable, and many dogs respond well to the available management options. Cystinuria can be treated with prescription diets and medications that aim to lower the acidity of the urine, making it harder for cystine crystals to form. If stones are blocking the urinary tract, there are both non-surgical and surgical procedures that can help. With the right treatment approach, most affected dogs maintain a good quality of life. Regular vet follow-ups help fine-tune the plan over time.

What does cystinuria treatment cost for dogs?

A DNA test for the SLC7A9 gene costs $75–$150. Combined with a veterinary exam and any additional workup, initial diagnostics typically run $300–$800 total. Prescription diets run $60–$120/month depending on your dog's size. Ongoing veterinary monitoring and management typically costs $500–$2,000 per year depending on severity and treatment needs. Emergency episodes can add significantly to this. Pet insurance taken out before symptoms appear can significantly reduce out-of-pocket costs — check your policy for genetic condition coverage.

Can cystinuria be prevented through breeding (Miniature Pinscher)?

Cystinuria primarily affects Miniature Pinschers. The condition is dominant, caused by a mutation in the SLC7A9 gene. DNA testing for the SLC7A9 gene is available and gives a definitive answer. A single copy of the mutation can cause disease. Affected dogs and known carriers should be carefully managed in breeding programs. Responsible breeders test both parents before any mating. Our vets can help with breeding guidance or pre-purchase advice for at-risk breeds.