How soon after ingesting aflatoxin will my pet show symptoms?

Onset varies and can occur within hours to several days. Common signs include vomiting, loss of appetite, and jaundice. Seek emergency care immediately if there is heavy bleeding or any change in consciousness.

How does the vet diagnose aflatoxin poisoning?

Your vet will arrange blood biochemistry, coagulation tests, and imaging to assess liver damage and bleeding risk. If needed, food samples or body fluids may be sent for toxin testing.

What can I do at home to prepare for the vet visit?

Record the timeline of symptoms, photograph vomiting or stools, and bring samples of the suspected food, a medication list, and any vomit — this helps your vet make a faster assessment.

What needs to be monitored after treatment?

Regular rechecks of blood biochemistry and coagulation are needed during and after treatment. Monitor changes in appetite, vomiting, and jaundice, and adjust follow-up frequency as directed 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

Aflatoxin Poisoning in Dogs & Cats: Symptoms, Diagnosis & Treatment [2025]

Aflatoxin poisoning, often caused by contaminated pet food, primarily damages the liver, leading to jaundice, bleeding, and liver failure — prognosis is guarded.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: AVMA, ACVIM, National Taiwan University Veterinary Hospital

When to See a Vet

Seek Emergency Care Immediately

•Continuous heavy bleeding or obvious blood in stool
•Sudden collapse or prolonged unresponsiveness
•Obvious difficulty breathing or blue-tinged lips and gums

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

•Significant decrease in appetite or persistent refusal to eat
•Frequent vomiting or ongoing changes in vomit content
•Jaundice of skin or eyes, or decline in alertness

01What symptoms signal something is wrong?

Aflatoxin poisoning mainly presents with liver damage and a tendency to bleed. Early signs can be subtle — watch closely for changes in appetite, vomiting, jaundice, and any bleeding.

Loss of appetite or a sudden significant drop in food intake
Frequent vomiting or changes in vomit appearance (blood-tinged or unusual colour)
Diarrhoea, possibly with mucus or blood in the stool
Jaundice of the skin and eyes (yellowing of the skin or whites of the eyes)
Abdominal distension or suspected ascites (swollen belly)
Unexplained bleeding, subcutaneous bruising, or increased bleeding tendency

Seek emergency care immediately if you notice the following symptoms:

⚠️ Continuous heavy bleeding or obvious blood in stool
⚠️ Sudden collapse or prolonged loss of responsiveness
⚠️ Severe difficulty breathing or blue-tinged lips and gums

02How to assess the situation at home? Key observation points and emergency indicators

Monitoring and recording at home helps your vet assess the timing and severity of poisoning — accurate information enables faster decisions.

Note the date and time when symptoms first appeared
Track daily changes in food intake, appetite, and water consumption
Take photos or short videos of vomiting, stools, or signs of jaundice
Collect and refrigerate any suspected food or vomit samples to bring to the clinic
Observe whether your pet seems lethargic, less active, or unusually sleepy
Seek veterinary care promptly if symptoms worsen or any danger signs appear

03How will the vet make a diagnosis? Common diagnostic tests

Your vet will primarily use blood panels, biochemistry, coagulation tests, and imaging to assess the extent of liver damage and bleeding risk, with further testing or histopathology if needed.

Physical examination

assessing dehydration, jaundice, abdominal tenderness, and mucous membrane colour

Blood count and biochemistry

evaluating liver enzymes, bilirubin, and electrolyte abnormalities

Coagulation tests

PT, aPTT, and related markers to assess bleeding risk

Urinalysis

evaluating kidney function and checking for concurrent infection or toxic effects

Imaging

abdominal ultrasound to assess liver condition and detect ascites

Tissue biopsy (histopathology) or toxin testing for further confirmation if required

04What treatment and care are needed after diagnosis? Medications, dietary adjustments, and care guide

Treatment is primarily supportive, focusing on maintaining fluid and electrolyte balance, protecting the liver, and closely monitoring blood biochemistry and coagulation — regular follow-up is essential.

Hospitalised supportive care: fluid therapy and electrolyte monitoring to maintain circulatory stability
Symptomatic management and medications prescribed by the vet based on clinical assessment
Transition to a liver-friendly diet and reintroduce feeding gradually as directed by your vet
Schedule regular rechecks to monitor blood biochemistry, coagulation parameters, and clinical signs
Monitor at home for recurrent bleeding, vomiting, or worsening jaundice
If recovery is slow, referral to a specialist hospital or further imaging may be recommended

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

Write down the time symptoms first appeared and how they have progressed

List all recent foods, treats, and human foods your pet may have accessed

Record the frequency, content, and timing of vomiting and diarrhoea episodes

Bring sealed, refrigerated samples of the suspected food and any vomit

Compile your pet's current medications, supplements, and vaccination records to bring along

Mention at booking that biochemistry, coagulation, and imaging tests may be needed to save time

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.