Can pyometra spread to other animals?

Pyometra is typically an individual reproductive tract infection related to hormonal changes and is not directly contagious to other animals. If you are concerned, consult your vet and have any pets living together examined.

Are unspayed female dogs and cats at higher risk?

Unspayed adult female dogs and cats face a higher risk of pyometra due to hormonal changes. The specific risk is influenced by age and breeding history — consult your vet for a personalised assessment.

What tests are typically needed to make a diagnosis?

Common tests include a haematology and biochemistry panel, urinalysis, and abdominal ultrasound. Bacterial culture or additional imaging may be added as needed, based on your vet's clinical judgement.

If surgery is needed, how long is the recovery?

In the early post-operative period, activity restriction and wound care are usually needed for one to two weeks. Full recovery time varies by individual and any complications, and may take several weeks to a few months — follow up with your vet as directed.

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

Pyometra in Dogs & Cats: Symptoms, Diagnosis & Treatment Guide [2025]

A serious uterine infection that requires urgent surgical treatment

Take 1 minute to check the symptoms first

Last updated: 2026/01/06

Pethealthmap Editorial Team

Sources: WSAVA, AAHA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek Emergency Care Immediately

•Persistent high fever that does not subside over an extended period
•Repeated vomiting with obvious inability to eat or signs of dehydration
•Sudden severe weakness, collapse, or difficulty breathing

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

•Noticeably reduced appetite lasting more than one day
•Persistent abnormal vaginal discharge or foul odor
•Lethargy or significantly decreased activity within two days

01What symptoms indicate something is wrong?

Pyometra typically presents with systemic signs alongside urinary or reproductive tract changes, and severity can range from mild to life-threatening.

Lethargy, excessive sleeping, or reduced activity
Noticeably decreased appetite or refusal to eat
Repeated vomiting or persistent poor appetite
Increased water intake, frequent urination, or changes in urination
Vaginal discharge or unusual odour

Seek emergency care immediately if you notice the following symptoms:

⚠️ Persistent high fever that does not resolve over time
⚠️ Repeated vomiting with obvious inability to eat or signs of dehydration
⚠️ Sudden severe weakness, collapse, or difficulty breathing

02How can I tell if something is wrong? What to watch at home and when to seek emergency care

Observing and recording at home helps your vet assess the situation quickly — keep track of timing and specific details.

Note when symptoms first appeared and how they have changed over time
Track daily water intake and approximate changes in urination frequency and volume
Record the number of vomiting episodes and the colour or contents of vomit
Photograph or collect a small sample of any vaginal discharge
Weigh your pet regularly and record changes for comparison
If the condition worsens, arrange a clinic visit or emergency care promptly

03How will the vet diagnose this? Common diagnostic tests

At the clinic, your vet will perform a physical examination along with necessary laboratory and imaging tests to assess the severity of the condition.

Physical examination

full body check, abdominal palpation, and vital sign monitoring

Blood count

complete blood count and infection marker assessment

Biochemistry panel

liver and kidney function and electrolyte testing

Urinalysis

to assess urinary tract infection or kidney abnormalities

Bacterial culture and antibiotic sensitivity testing (if required)

Imaging

abdominal ultrasound is the key diagnostic tool; X-rays may be added if needed

04What treatment and care are needed after diagnosis? Medications, diet, and home care guide

Treatment may involve medication or surgery; post-operative and long-term follow-up is important for a good prognosis.

Antibiotics will be adjusted based on culture results and clinical response
Ovariohysterectomy (spay) is the most common treatment; timing depends on your pet's condition
Post-operative follow-up visits and blood test monitoring are required
Home care includes rest, wound monitoring, and wound cleaning
Fluid support and nutritional support can aid post-operative recovery
Return to the vet immediately if symptoms worsen or the wound looks abnormal

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

Note when symptoms first appeared and how they changed over time

Bring records or photos of water intake, urination frequency, and vomiting episodes

List recent medications, supplements, and vaccination records

If there is discharge, bring a small container or photos for testing

Prepare your pet's basic information and emergency contact details

Call ahead to book an appointment and ask whether imaging or culture tests can be arranged

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.