Is Chediak-Higashi syndrome a hereditary disease?

This condition is primarily hereditary, with bleeding and immune-related symptoms often appearing from a young age. Consult your vet to determine whether further genetic testing is appropriate.

How does the vet typically diagnose and confirm the condition?

The vet will start with a complete blood count, biochemistry panel, and urinalysis, arranging specialist evaluation or further haematological testing if needed.

What home care can reduce the risk of complications?

Avoid rough play and activities that may cause injury, keep wounds clean, record any bleeding or infection episodes, and seek veterinary care promptly if anything seems wrong.

What is the prognosis for this condition?

Prognosis varies depending on the individual case and whether concurrent infections are present. Some pets require long-term monitoring — discuss the specific prognosis and follow-up plan with 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

Chediak-Higashi Syndrome in Dogs & Cats: Bleeding Symptoms, Blood Tests & Care Guide [2025]

Chediak-Higashi syndrome is a hereditary immune deficiency that causes a bleeding tendency, requiring supportive treatment and infection prevention

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 veterinary care (emergency)

•A large amount of bleeding occurs within a short time and does not stop
•Sudden collapse with loss of responsiveness or activity
•Gums or tongue turn white or bluish-purple, accompanied by weakness

Schedule a clinic visit as soon as possible (within 24-72 hours)

•Repeated small amounts of bleeding or minor abrasions that are difficult to stop
•Frequent recurrent infections or slow wound healing
•Decreased activity or persistently low energy

01What Symptoms Indicate a Problem?

This syndrome in dogs and cats typically presents with bleeding and abnormal immune function, which may include recurrent infections and slow wound healing.

Recurring minor or major bleeding from the skin, nose, or mouth
Easily bleeding gums or persistent periodontal problems
Slow wound healing with recurrent infections
Reduced activity, lethargy, or easy fatigue
Changes in coat colour or eye appearance (e.g. pale or cloudy)

Seek emergency care immediately if you notice the following symptoms:

⚠️ Heavy bleeding that cannot be stopped on its own
⚠️ Sudden collapse or loss of responsiveness
⚠️ Gums turning pale white or blue-purple in colour

02How to Assess Abnormalities at Home: Key Observations and When to Seek Emergency Care

Observing and recording at home provides important clues for the vet — keep systematic records of bleeding episodes and general condition changes.

Record the number of bleeding episodes, the amount each time, and the affected area
Note the time of the first episode and the timeline of subsequent changes
Track daily changes in appetite, water intake, and activity level
Watch for abnormal urination or defecation, including blood in urine or stool
Take photos and videos of bleeding or wounds for reference
Bring all images and records to your haematology specialist appointment

03How Will the Vet Diagnose the Condition? Common Diagnostic Tests

At the clinic, the vet will start with a physical examination and blood tests, with further imaging or specialist evaluation arranged if needed.

Physical examination

assessing bleeding sites, anaemia, and overall condition

Complete blood count (CBC)

evaluating blood cell numbers and platelet status

Biochemistry panel

assessing liver and kidney function and metabolic abnormalities

Urinalysis

ruling out urinary or systemic metabolic problems

Imaging (X-ray or CT scan)

screening for concurrent organ involvement

Referral to a haematology specialist for further evaluation when necessary

04How to Treat and Care for Your Pet After Diagnosis: Medications, Diet, and Home Care Guide

Treatment focuses on controlling bleeding and infections and monitoring haematological parameters regularly — your vet will create an individualised follow-up plan.

Develop a medication and supportive care plan based on test results
Follow dietary adjustments and keep records of bleeding and infection episodes
Care for wounds at home and avoid rough play or activities that risk injury
Schedule regular follow-up visits to monitor haematology and clinical progress
Refer to a specialist hospital for long-term management when necessary
The vet will assess disease progression and prognosis and adjust the follow-up frequency accordingly

05What to Prepare Before the Vet Visit: Key Information to Help the Vet Diagnose Quickly

Write down when symptoms first appeared and how they have changed over time

List all recent medications, supplements, and vaccination records

Bring any photos and videos you have taken for the vet's reference

Record daily diet habits and any changes in urination and defecation

Bring any prior test reports or imaging results if available

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.