What should I do if my dog shows signs of prostatic enlargement?

If you notice urinary changes or blood in the urine, note the symptoms and bring your pet to a vet as soon as possible. The vet will likely recommend urinalysis and imaging to assess the prostate, and will advise on the appropriate next steps.

Can prostatic enlargement become life-threatening quickly?

Symptoms usually develop gradually, but if complete urinary obstruction or severe bloody urine occurs, the condition can deteriorate rapidly. Seek veterinary care immediately in those situations.

What can I prepare at home before the vet visit?

Record when symptoms began and how they have progressed, track daily urination frequency and volume, bring a fresh urine sample and a short video of abnormal behaviour if possible, and prepare a list of current medications for the vet.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Prostatic Enlargement in Dogs: Symptoms, Diagnosis & Treatment [2025]

Prostatic enlargement affects urination and defecation

Take 1 minute to check the symptoms first

Last updated: 2026/01/06

Pethealthmap Editorial Team

Sources: WSAVA, ACVIM, National Taiwan University Veterinary Hospital

When to See a Vet

Seek emergency care immediately

•Completely unable to urinate despite repeated straining with no urine output
•Markedly lethargic, weak, and unresponsive
•Obvious abdominal distension or crying out in pain when abdomen is touched

Schedule a clinic visit soon (within 24–72 hours)

•Frequent urination with very small amounts passed, but still eating and drinking
•Blood in urine or persistently cloudy urine
•Repeated attempts to urinate with noticeable behavioral changes

01What symptoms indicate something is wrong?

Prostatic enlargement commonly causes changes in urination and general behaviour. Early signs are often mild — such as increased frequency or repeated attempts to urinate — but the condition can progress to bloody urine or a complete inability to urinate, which is a medical emergency.

Frequent trips to the toilet or repeated attempts to urinate
Straining to urinate with only small amounts passed each time
Blood in the urine or cloudy, discoloured urine
Changes in urination posture or excessive licking of the genital area
Decreased appetite and activity level, with noticeable behaviour changes

Seek emergency care immediately if you notice the following symptoms:

⚠️ Complete inability to urinate accompanied by obvious weakness or lethargy
⚠️ Abdominal distension or crying out when the abdomen is touched
⚠️ Heavy continuous blood in the urine or signs of shock (extreme lethargy, pale gums)

02How can you assess the situation at home? Key observations and emergency criteria

Details recorded at home can help the vet assess the situation quickly — including urination frequency, urine volume, and any changes in overall activity level.

Note the date and time you first noticed the symptoms
Record the number of urination attempts and approximate urine output each day
Film a short video of any abnormal urination or behaviour for the vet
Observe the urine colour for blood, cloudiness, or unusual odour
Track changes in water intake, appetite, and activity level
If straining to urinate is severe, arrange a vet visit as soon as possible

03How will the vet diagnose the problem? Common diagnostic tests

The vet will combine a physical examination with laboratory and imaging tests to assess the prostate and urinary tract, identify the underlying cause, and determine the best treatment approach.

Full physical examination, including digital rectal examination to assess prostate size where appropriate

Complete blood count and biochemistry panel to evaluate overall organ function

Urinalysis with urine sediment examination to check for blood and cellular abnormalities

Bacterial culture and antimicrobial sensitivity testing to identify any infection

Abdominal ultrasound to evaluate the prostate and bladder; advanced imaging if needed

04How is it treated and managed after diagnosis? Medications, diet, and home care

Treatment is tailored to the cause and severity, and may include medication, short-term catheterisation, or surgery, along with regular follow-up to monitor response and watch for complications.

Antibiotics when concurrent infection is confirmed, with follow-up cultures to monitor response
Short-term urinary catheterisation or diversion to relieve urinary obstruction temporarily
Long-term medication or hormonal therapy with regular monitoring for efficacy and side effects
Dietary adjustments and weight management as supportive measures
Scheduled follow-up ultrasound and urinalysis as directed by the vet
Referral to a specialist hospital recommended for complex or advanced cases

05What should you prepare before the appointment? Key information to help the vet

Write down when symptoms first appeared and how they have changed over time

Bring a daily log of urination and defecation (frequency and estimated volume)

If possible, bring a small sample of fresh urine in a clean container for in-clinic testing

Prepare a list of current medications and supplements for the vet to review

Record a short video of any abnormal urination or discomfort to show during the consultation

Bring any previous test results or imaging records if available

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.

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