What are the early signs of hepatocutaneous syndrome?

Common early signs include decreased energy, loss of appetite, vomiting, or diarrhoea. Yellowing of the skin or mucous membranes (jaundice) may indicate a more serious stage — consult your vet promptly if you notice this.

What tests will the vet perform at the clinic?

Common tests include a complete blood count, serum biochemistry, urinalysis, and abdominal ultrasound or X-ray. A liver biopsy may be arranged if needed to confirm the diagnosis. Follow your vet's recommendations for each step.

Does treatment require long-term follow-up?

In most cases, supportive treatment is combined with dietary management and regular blood tests to monitor liver function. The frequency of follow-up visits depends on how the condition progresses — always follow your vet's schedule.

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

Hepatocutaneous Syndrome in Dogs & Cats: Symptoms, Diagnosis & Care Guide [2025]

Hepatocutaneous syndrome is a serious skin condition caused by underlying liver disease, most commonly seen in dogs with diabetes or chronic liver disease. Skin lesions typically affect the paw pads and muzzle, and treatment focuses on nutritional support and managing the underlying condition.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap editorial team

Sources: ACVIM, WSAVA, National Taiwan University Veterinary Hospital, Veterinary Internal Medicine Society

When to See a Vet

Immediate veterinary care needed (emergency)

•Noticeable yellowing of the whites of the eyes or gums persists
•Ongoing severe vomiting or vomiting with blood
•Sluggish mental response or sudden loss of consciousness

Schedule a veterinary visit soon (within 24-72 hours)

•Appetite is clearly reduced for more than two days
•Repeated or intermittent vomiting does not improve after more than one day
•Body weight has clearly decreased for two consecutive weeks or longer

01What symptoms indicate something is wrong?

Hepatocutaneous syndrome often presents with non-specific systemic signs early on, progressing to gastrointestinal symptoms and changes in the skin or mucous membranes. Early recognition helps prompt appropriate testing and monitoring.

Lethargy and noticeably reduced activity level
Decreased appetite or food fussiness, with reduced food intake
Repeated or intermittent vomiting
Persistent diarrhoea or changes in stool consistency
Gradual weight loss over several weeks
Abnormal urination frequency or changes in urine colour

Seek emergency care immediately if you notice the following symptoms:

⚠️ Persistent yellowing of the whites of the eyes or gums (jaundice)
⚠️ Continuous severe vomiting or vomiting blood
⚠️ Severe mental dullness or sudden loss of consciousness

02How to monitor at home: key observations and when to seek emergency care

Monitoring and documenting specific changes at home helps your vet assess the situation faster and arrange the necessary tests at the first consultation.

Note when symptoms started and track daily changes in timing and severity
Measure and record daily changes in food and water intake
Film vomiting episodes or abnormal stools with your phone and save for the vet
Weigh your pet at the same time each week and track the trend
Record urination frequency, urine colour, and any unusual odour or blood

03How will the vet diagnose this? Common diagnostic tests

At the clinic, blood tests and imaging are used to evaluate liver function and overall health; further diagnostic steps are taken when needed.

Complete blood count (CBC)

assess for anaemia or signs of inflammation

Serum biochemistry panel

evaluate liver enzymes, bilirubin, kidney function, and electrolytes

Urinalysis

assess kidney function and bilirubin excretion

Abdominal ultrasound or X-ray

examine the liver, bile ducts, and abdominal structures

Liver biopsy or fine-needle aspirate when needed to confirm a histopathological diagnosis

Advanced imaging such as CT scan may be recommended for complex cases or pre-referral assessment

04What treatment and care are needed? Medications, diet, and home management

Treatment typically involves supportive medications, dietary adjustments, and regular follow-up testing. Close communication with your vet and consistent re-examinations are essential as the condition evolves.

Supportive medications and symptomatic treatment as advised by your vet
Prescription diet adjustments as appropriate to reduce the burden on the liver
Regular blood tests to monitor liver function and treatment response, per your vet's schedule
Home monitoring of food and water intake, vomiting frequency, and weight changes
Arrange specialist referral or surgical consultation promptly if recommended by your vet

05What to prepare before your vet visit: key information to speed up diagnosis

Prepare a written symptom log and timeline of when signs first appeared

List recent foods, treats, and any potential toxin exposures

Record elimination frequency, stool consistency, and vomiting count — bring video footage if available

Bring all current medications, supplements, and previous test reports

If possible, book an appointment at a clinic that can run blood biochemistry tests on-site

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.