Dog Prostate Disease Management | Animal Welfare Hub

Prostatic disease in intact male dogs causes pain and urinary obstruction; castration is both preventive and curative for most benign conditions.

Key Facts

Benign prostatic hyperplasia (BPH) affects over 80% of intact male dogs over 5 years old.
Signs include straining to defecate or urinate, blood in urine or preputial discharge, and constipation.
Castration causes complete regression of BPH within weeks and is curative in most cases.
Prostatic abscesses are life-threatening emergencies requiring immediate surgical and medical management.
Prostatic carcinoma, while less common, does not respond to castration and carries a poor prognosis.

Welfare Considerations

Dogs with BPH experience chronic discomfort and difficulty with defecation and urination. The enlarged prostate compresses the urethra and colon, making basic biological functions painful. Affected dogs may strain repeatedly without relief, causing distress. Medical management with finasteride or deslorelin implant can reduce prostate size without surgical castration. However, castration provides definitive resolution and prevents disease recurrence. Prostatic abscesses cause acute, severe illness with systemic sepsis; emergency care is essential. The welfare benefit of castration in preventing BPH is significant and relevant to the decision about neutering in older intact male dogs showing clinical signs.

What You Can Do

Have intact male dogs examined annually for prostatic enlargement, particularly over 5 years.
Consider castration or deslorelin implant for dogs showing BPH-related symptoms.
Seek emergency care immediately for an intact male dog that collapses, runs a high fever, or cannot urinate.
Discuss prostatic health as part of neutering decision-making with your vet for older intact males.