What are the common symptoms of a prostate cyst?

Common symptoms include difficulty urinating, increased urination frequency, or blood in the urine. Decreased appetite, lethargy, or abdominal swelling may also occur. If your pet is completely unable to urinate, seek emergency veterinary care immediately.

What tests will the vet use to diagnose a prostate cyst?

Common tests include physical palpation, abdominal ultrasound, urinalysis, and cytology or bacterial culture. Blood tests or advanced imaging may also be added as needed.

What treatment options are available for a prostate cyst?

Treatment depends on the size of the cyst and the severity of symptoms, and may include infection control, drainage, or surgical management. Your vet will discuss the specific approach and any associated risks after evaluation.

What follow-up care is needed after treatment?

Regular recheck visits and ultrasound monitoring to track cyst size are usually recommended. Keep a record of urination patterns, body weight, and energy levels, and attend follow-up appointments as scheduled by your 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

Prostate Cysts in Dogs & Cats: Urinary Signs, Ultrasound & Care Guide [2025]

Prostate cysts causing difficulty urinating and defecating

Take 1 minute to check the symptoms first

Last updated: 2026/01/06

Pethealthmap Editorial Team

Sources: AVMA, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek Emergency Care Immediately

•Completely unable to urinate despite repeated attempts
•Persistent bright red blood or blood clots in the urine
•Extreme weakness, prolonged lethargy, and very poor responsiveness

Schedule a Clinic Visit Soon (within 24–72 hours)

•Noticeably increased or decreased urination frequency lasting several days
•Straining or crying out during urination occurring repeatedly
•A palpable swelling or obvious abnormality in the abdomen or perineum

01What symptoms indicate something is wrong?

Prostate cysts often cause changes in urination and general wellbeing. Early signs can be subtle, but worsening cases typically show noticeable discomfort.

Low energy and reduced interaction with people
Decreased appetite or refusal to eat
Changes in urination frequency or manner
Straining to urinate or a sense of incomplete emptying
Reduced activity levels, spending long periods lying down
Swelling or tenderness in the abdomen or perineal area

Seek emergency care immediately if you notice the following symptoms:

⚠️ Complete inability to urinate — seek emergency care immediately
⚠️ Heavy or persistent blood in the urine
⚠️ Extreme weakness or prolonged unresponsive lethargy

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

Observing and recording symptoms at home before your vet visit helps the veterinarian quickly understand the situation. Focus on specific counts and timing.

Record the date and time when symptoms first appeared
Note changes in appetite and water intake each day
Observe and record urination frequency and any difficulty
Use your phone to video unusual urination or behavior
Weigh your pet weekly and track the trend
Bring your notes and records to share with the vet at the appointment

03How will the veterinarian diagnose this? Common tests and procedures

The vet will start with a physical examination, then use imaging and laboratory tests to confirm the presence, size, and any associated infection or obstruction.

Physical examination

palpation of the abdomen and perineum to assess enlargement

Abdominal ultrasound

to confirm the number, size, and location of cysts

Cytology

collection and examination of cyst fluid or discharge

Urine culture

to evaluate for concurrent infection

Blood tests and electrolytes

to assess overall condition and complications

Advanced imaging (CT)

used for complex or deep-seated cases

Recommended to visit a specialist clinic with ultrasound and sampling capabilities

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

Treatment depends on cyst size and symptoms. Imaging follow-up and scheduled rechecks are usually needed to monitor recovery.

Initial management with medication to control infection or inflammation
Drainage or surgical intervention if urinary obstruction is present
Regular recheck visits with ultrasound monitoring after treatment or surgery
Home care includes tracking urination and keeping any wound clean
Maintaining good body condition and diet supports recovery and reduces complications
Consider referral to a surgical or urology specialist for further evaluation

05What should I prepare before the vet visit? Key information to help the vet identify the cause

Write down a detailed timeline of when symptoms appeared and how they changed

Record daily urination and defecation frequency and any abnormalities

Note changes in appetite, water intake, and body weight

Bring a list of current medications and supplements

If available, bring copies of previous imaging or test reports

Consider calling ahead to book an appointment at a clinic with ultrasound capabilities

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.