What are the common causes of bleeding associated with liver disease?

Liver damage impairs the production of clotting factors, disrupts normal blood coagulation, and can alter platelet function — all of which can lead to bleeding or bruising. A vet should perform blood tests and imaging to identify the specific cause.

What tests will the vet perform to find the cause of the bleeding?

Common tests include a complete blood count, liver function biochemistry panel, coagulation tests (PT/INR), and abdominal ultrasound — or advanced imaging when needed — to identify liver disease or other bleeding sources.

Can this condition be treated or managed?

In many cases, the condition can be improved with targeted treatment and supportive care. However, the prognosis depends on the extent of liver damage and severity of bleeding. Ongoing veterinary monitoring is recommended.

What information should I bring to the vet appointment?

Bring a record of when symptoms began, a list of current medications and supplements, weight and water intake logs, and photos or videos of any bleeding or abnormal stools to help the vet assess the situation quickly.

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

Hepatic Coagulopathy in Dogs & Cats: Bleeding Symptoms, Coagulation Tests & Care [2025]

Hepatic coagulopathy occurs when the liver cannot produce enough clotting factors. Treatment targets the underlying liver disease, and blood transfusions may be needed for active bleeding.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: ACVIM, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek immediate emergency care

•Heavy external bleeding that cannot be stopped on its own
•Persistent vomiting or bloody stools with no improvement
•Loss of consciousness or extreme weakness with no response

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

•Minor unexplained bleeding from the mouth or gums
•Blood in urine or stool but pet is otherwise alert
•Persistent bruising or bleeding from the skin or minor wounds

01What symptoms indicate a problem?

Liver disease impairs clotting factor synthesis, often presenting as visible or hidden bleeding alongside general signs of illness.

Abnormal or prolonged bleeding from the gums or oral mucous membranes
Blood in the urine (haematuria) or pink/red discolouration when urinating
Black tarry stools (indicating gastrointestinal bleeding) or fresh blood in the faeces
Unexplained bruising on the skin or wounds that take unusually long to stop bleeding
Reduced alertness, decreased appetite, and noticeably lower energy levels

Seek emergency care immediately if you notice the following symptoms:

⚠️ Heavy external bleeding that cannot be stopped
⚠️ Persistent vomiting or bloody stools with no improvement
⚠️ Collapse, extreme weakness, or unresponsiveness

02What should you watch for at home? Key observations and when to seek emergency care

Monitoring and recording symptoms at home before your vet visit helps the veterinarian quickly understand the timeline and severity.

Note when bleeding first appeared, how often it occurs, and how long each episode lasts
Use your phone to photograph or video any bleeding, unusual stools, or concerning behaviours
Measure and record your pet's weight, water intake, and appetite changes daily
Observe your pet's alertness, activity level, and any signs of pain or discomfort
Write down any recent medications, supplements, or potential toxin exposures

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

The vet will use blood tests and imaging to assess clotting ability and liver function, and to rule out other sources of bleeding.

Complete blood count (CBC)

evaluates for anaemia and platelet status

Biochemistry panel

measures liver enzymes and detects related metabolic abnormalities

Coagulation tests (e.g. PT/INR)

assesses the blood's ability to clot

Urinalysis and faecal examination

rules out urinary tract or gastrointestinal sources of bleeding

Abdominal ultrasound or advanced imaging (CT)

examines liver structure and identifies lesions

04What are the treatment and care options after diagnosis? Medications, diet adjustments, and home care guide

Treatment focuses on controlling bleeding, improving liver function, and addressing the underlying cause, with regular blood monitoring required.

Supportive care and targeted treatment based on diagnostic results
Dietary adjustments to reduce liver workload, with scheduled follow-up appointments
Regular blood tests to monitor liver enzyme levels and coagulation markers
Minimise the risk of injury at home and keep track of any minor bleeding sites
Return to the vet promptly or seek specialist referral if the condition changes or bleeding worsens

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

Record when symptoms started, how they have progressed, and details of the current condition

Bring or have ready photos and videos of any bleeding or abnormal stools for the vet to review

List all current medications, supplements, and vaccination history

Prepare specific records of appetite, water intake, and weight changes

If previous test results or imaging are available, bring them to the appointment

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.