# Shar Pei Health Problems: Shar-Pei Fever Amyloidosis and Entropion
## Key Takeaways
- **Shar-Pei Fever (FSF) is a hereditary autoinflammatory disorder, not an infection, characterized by recurrent episodes of fever (>103°F/39.4°C), swollen hocks, facial swelling, and lethargy, necessitating immediate veterinary assessment to prevent progression to amyloidosis.**
- **Amyloidosis, a severe consequence of chronic inflammation from FSF, involves the deposition of misfolded Serum Amyloid A protein in organs, primarily the kidneys, leading to progressive organ failure and a guarded prognosis, with diagnosis often requiring bloodwork, urinalysis (proteinuria), and potentially biopsy.**
- **Entropion, the most prevalent disorder (17.88% in a UK study), is a painful conformational defect where eyelids roll inward, causing corneal abrasion and potential blindness; it requires urgent veterinary attention and surgical correction (blepharoplasty) to prevent ocular damage.**
- **The breed's characteristic hyaluronosis (excess hyaluronic acid in skin) is genetically linked to both the inflammatory predisposition of FSF and the conformational issues leading to entropion, highlighting a fundamental breed-specific vulnerability.**
- **Median longevity for Shar Peis is significantly reduced (7.28 years in one study), with a high euthanasia rate (85.33%), underscoring the critical importance of proactive breed-specific health screening and early intervention for conditions like FSF, amyloidosis, and entropion.**
- **Management strategies include aggressive control of FSF with anti-inflammatory medications (e.g., NSAIDs, potentially colchicine under veterinary guidance), prompt surgical correction of entropion, and regular diagnostic monitoring (bloodwork, urinalysis) for early amyloidosis detection.**
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If you own a Shar Pei or are considering adding one to your family, you need to know about three interconnected health challenges: Shar-Pei fever, amyloidosis, and entropion. These are not rare anomalies; they are breed-defining conditions that every owner and veterinarian should monitor. The most common clinical problem is entropion, a painful eye condition where the eyelid rolls inward. The most life-threatening is Shar-Pei fever, which can trigger amyloidosis, a disease where protein deposits accumulate in organs and cause organ failure. This article provides a detailed, source-grounded review of these conditions, their management, and what you should discuss with your veterinarian.
**Owner Triage Summary:** If your Shar Pei shows squinting, excessive tearing, or redness of the eye, suspect entropion and seek veterinary attention within 24 hours. If your [dog](/knowledge/veterinary-medicine/clinical-methods/dog) experiences a sudden fever, lethargy, swelling of the hocks (ankles), or a painful, swollen face, suspect Shar-Pei fever and contact your veterinarian immediately. Early intervention for both conditions dramatically improves comfort and long-term prognosis.
## At a Glance: Shar Pei Health Overview
The Shar Pei's distinctive appearance, characterized by deep wrinkles and a "hippopotamus" muzzle, is caused by an excess of hyaluronan (hyaluronic acid) in the skin, a condition known as mucinosis or hyaluronosis. This genetic trait is directly linked to the breed's predisposition to the inflammatory and ocular diseases discussed below.
| Condition | Prevalence in UK Primary Care | Key Clinical Signs | Emergency Status |
| :--- | :--- | :--- | :--- |
| **Entropion** | 17.88% (most prevalent disorder) | Squinting, excessive tearing (epiphora), redness, corneal ulcers, pawing at eyes | **Urgent** (can cause blindness if untreated) |
| **Otitis Externa** | 16.36% (second most prevalent) | Head shaking, ear scratching, odor, discharge, redness | Non-emergency, but requires treatment |
| **Shar-Pei Fever** | Not specifically reported as a distinct disorder in this study; considered a breed-specific syndrome | Recurrent fever, swollen hocks, facial swelling, lethargy, vomiting | **Emergency** (can lead to kidney failure) |
| **Amyloidosis** | Not specifically reported as a distinct disorder in this study; a long-term consequence of fever | Lethargy, increased thirst/urination, weight loss, vomiting, jaundice | **Emergency** (indicates organ failure) |
| **Pyoderma** | 4.29% | Pustules, papules, hair loss, itchy skin, odor | Non-emergency, but requires veterinary treatment |
This table is a clinical guide, not a diagnostic tool. The prevalence data for entropion, otitis, and pyoderma are derived from a large UK study of primary-care veterinary records. Shar-Pei fever and amyloidosis are recognized breed-specific syndromes that are less easily captured in large-scale epidemiological studies due to their episodic nature and variable clinical presentation.
## Shar-Pei Fever: The Inflammatory Storm
Shar-Pei fever, also known as familial Shar Pei fever (FSF), is a hereditary autoinflammatory disorder. It is a key driver of the breed's most severe health complications. While the UK primary-care study did not list it as a top-five specific disorder, its impact on morbidity and mortality is profound and well-recognized in veterinary medicine.
### What is Shar-Pei Fever?
Shar-Pei fever is characterized by recurrent, unexplained episodes of fever and inflammation. It is not an infection, so antibiotics are ineffective. The condition is believed to be linked to the same genetic pathway that causes the breed's characteristic wrinkled skin (hyaluronosis). The excess hyaluronan may trigger an abnormal inflammatory response in the body.
### Clinical Signs and Recognizing an Episode
An episode of Shar-Pei fever can be alarming for owners. The signs can vary but often include:
- **Fever:** A sudden spike in body temperature, often exceeding 103°F (39.4°C).
- **Swollen Hocks:** Swelling and pain in one or both hocks (ankle joints), making the dog reluctant to walk or bear weight.
- **Facial Swelling:** Swelling of the muzzle or lips, giving the dog a "smooshed" or pained appearance.
- **Lethargy and Depression:** The dog appears profoundly tired, withdrawn, and uninterested in normal activities.
- **Gastrointestinal Signs:** Vomiting, diarrhea (or diarrhoea), and a decreased appetite.
- **Pain:** Signs of abdominal pain, a stiff gait, or a hunched posture.
An episode can last for 24 to 48 hours and may resolve on its own, but it is a medical event that warrants a veterinary examination. The frequency of episodes varies; some dogs experience them rarely, while others have them every few weeks.
### The Pathophysiology: From Fever to Amyloidosis
The most serious consequence of untreated or recurrent Shar-Pei fever is the development of reactive systemic amyloidosis. Here is the mechanism:
1. **Chronic Inflammation:** Each fever episode is a surge of systemic inflammation. The body releases large amounts of a protein called Serum Amyloid A (SAA) from the liver.
2. **Protein Misfolding:** During prolonged or repeated inflammation, the SAA protein is not broken down properly. It misfolds and aggregates into insoluble fibrils.
3. **Amyloid Deposition:** These amyloid fibrils are deposited in the tissues of organs, most commonly the kidneys. Over time, this deposition destroys the normal tissue architecture.
4. **Organ Failure:** The accumulation of amyloid in the kidneys leads to progressive kidney failure. It can also affect the liver, spleen, adrenal glands, and gastrointestinal tract.
Amyloidosis is a progressive and ultimately fatal disease. The goal of managing Shar-Pei fever is not just to resolve the acute episode, but to prevent the chronic inflammation that leads to amyloid deposition.
## Amyloidosis: The Silent Organ Damage
Amyloidosis is not a single disease but a condition characterized by the extracellular deposition of amyloid, an abnormal protein, in tissues and organs. In Shar Peis, it is most commonly a secondary (reactive) condition resulting from chronic inflammation, as seen with Shar-Pei fever.
### How Amyloidosis Affects the Shar Pei
The kidneys are the primary target in Shar Pei amyloidosis. As amyloid builds up in the glomeruli (the filtering units of the kidney), their function declines.
- **Early Stages:** The dog may show no clinical signs, or only subtle ones like increased thirst (polydipsia) and increased urination (polyuria). This is a critical window where early detection via blood and urine tests can help manage the disease.
- **Late Stages:** As kidney failure progresses, signs become more apparent and severe. These include:
- Weight loss and poor body condition.
- Decreased appetite and vomiting.
- Lethargy and weakness.
- Bad breath (halitosis) and oral ulcers.
- Swelling of the limbs (edema) due to protein loss.
- Jaundice (yellowing of the gums and skin) if the liver is affected.
### Diagnosis of Amyloidosis
Diagnosing amyloidosis requires a high index of suspicion, especially in a Shar Pei with a history of fever episodes.
- **Blood Tests:** A biochemistry panel will reveal elevated kidney values (creatinine and BUN) and may show low protein levels (hypoproteinemia).
- **Urinalysis:** A urinalysis will show dilute urine and significant protein loss (proteinuria), which is a hallmark of glomerular disease.
- **Definitive Diagnosis:** The only way to definitively diagnose amyloidosis is through a biopsy of the affected organ (e.g., kidney). A tissue sample is stained with a special dye (Congo red) and examined under polarized light to confirm the presence of amyloid. This is an invasive procedure with risks, especially in a patient with compromised kidney function.
### Management and Prognosis
There is no cure for amyloidosis. The goal of treatment is to slow the progression of the disease, manage the clinical signs, and maintain a good quality of life for as long as possible.
- **Underlying Cause:** The most important step is to aggressively manage the underlying inflammatory condition (Shar-Pei fever) to prevent further amyloid deposition.
- **Renal Support:** Treatment involves a kidney-friendly diet (low protein, low phosphorus), medications to control blood pressure (if hypertensive), and therapies to reduce protein loss in the urine.
- **Symptomatic Care:** Anti-nausea medications, appetite stimulants, and fluid therapy are used to manage the clinical signs of kidney failure.
The prognosis for Shar Pei amyloidosis is guarded to poor. The disease is progressive, and the rate of progression varies. With early detection and diligent management, some dogs can live comfortably for months to a year or more after diagnosis.
## Entropion: A Painful Ocular Emergency
Entropion is the most common specific health problem diagnosed in Shar Peis in the UK, with a prevalence of 17.88%. It is a condition where the eyelid margin rolls inward, causing the eyelashes and hair on the outside of the eyelid to rub against the cornea (the clear front part of the eye) and conjunctiva.
### Why Shar Peis Are Predisposed
The Shar Pei's heavy, wrinkled facial skin, a result of hyaluronosis, is the primary culprit. The excessive skin folds and weight of the tissue can pull the eyelids inward. This is a conformational problem, meaning it is a direct result of the breed's physical structure. Both the upper and lower eyelids can be affected, and it often occurs in both eyes.
### Clinical Signs and Diagnosis
Entropion is intensely painful. The constant friction of hair on the cornea is like having sand in your eye.
- **Squinting (Blepharospasm):** The dog will hold its eye partially or fully closed.
- **Excessive Tearing (Epiphora):** The eye will water profusely as a protective response.
- **Redness (Conjunctival Hyperemia):** The white of the eye and the inner eyelid will appear red and inflamed.
- **Corneal Ulcers:** The constant rubbing can abrade the cornea, creating an ulcer. This is an emergency. A deep ulcer can lead to corneal perforation and blindness.
- **Pawing at the Eyes:** The dog may rub its face on the ground or paw at its eyes to relieve the irritation.
- **Mucoid or Purulent Discharge:** A secondary infection can develop, leading to a thick, yellow-green discharge.
A veterinarian can diagnose entropion with a simple ophthalmic examination. A fluorescein dye test is essential to check for and stain any corneal ulcers. This test involves placing a drop of orange dye in the eye and using a blue light to see if there are any green-staining areas, which indicate an ulcer.
### Surgical and Non-Surgical Management
Entropion is a surgical condition. The goal of surgery is to evert (turn outward) the eyelid margin to its normal position.
- **Temporary Measures:** In very young puppies, the eyelid skin may be too immature for definitive surgery. A veterinarian may temporarily tack the eyelids open with sutures to protect the cornea while the dog grows. Lubricating eye drops are also used to protect the eye in the short term.
- **Surgical Correction (Blepharoplasty):** The most common procedure involves removing a wedge or ellipse of skin from the affected eyelid and suturing the edges together. This tightens the eyelid and rolls it outward. Various techniques exist, and the choice depends on the severity and location of the entropion.
- **Post-Operative Care:** After surgery, the dog will need to wear an Elizabethan collar (e-collar) to prevent self-trauma. Antibiotic and anti-inflammatory eye drops are typically prescribed. The sutures are usually removed in 10 to 14 days.
If entropion is left untreated, it will cause chronic pain, recurrent corneal ulcers, and eventually, scarring of the cornea (pigmentary keratitis) that can permanently impair vision.
## Other Common Shar Pei Health Problems
While Shar-Pei fever, amyloidosis, and entropion are the focus of this article, the UK study highlights other significant health issues in the breed that owners should be aware of.
- **Otitis Externa (Ear Infections):** With a prevalence of 16.36%, this is the second most common specific disorder. The Shar Pei's narrow ear canals, combined with the breed's tendency for allergic skin disease and excessive ear wax, create a perfect environment for infections. Regular ear cleaning and prompt treatment of any signs of itching or odor are essential.
- **Dermatological Problems:** The skin is a major problem area, with a group-level prevalence of 21.01%. This includes pyoderma (bacterial skin infections, prevalence 4.29%), which is often secondary to allergies or the breed's deep skin folds. These folds can trap moisture and debris, leading to skin fold dermatitis (intertrigo). Managing skin health is a lifelong commitment for many Shar Pei owners.
- **Aggression:** The study found a prevalence of 5.23% for aggression. While this is a complex behavioral issue with genetic and environmental components, it is a notable finding. Early, consistent, and positive-reinforcement-based socialization and training are crucial for this breed.
- **Traumatic Injury:** With a group-level prevalence of 7.53%, this is a significant concern. This may be related to the breed's muscular build and sometimes boisterous nature.
## Breed Longevity and Mortality
The UK study provides sobering data on the lifespan of Shar Peis. The median longevity of 190 Shar Peis that died during the study period was only **7.28 years**. This is significantly shorter than the average lifespan for many other dog breeds.
- **Euthanasia:** A staggering 85.33% of the deaths in the study involved euthanasia. This indicates that many Shar Peis are euthanized due to health or behavioral problems rather than dying naturally.
- **Cause of Death:** Among the deaths with a recorded cause, **neoplasia (cancer)** was the most common cause of death at the group level, accounting for 15.44%. This highlights that while the breed-specific conditions are significant, cancer is also a major health threat.
This data underscores the importance of proactive veterinary care and health screening for the breed.
## Veterinary Examination and Diagnostics
If you own a Shar Pei, your veterinarian will perform a thorough, breed-specific examination. This goes beyond a standard annual check-up.
- **Ophthalmic Examination:** This is a non-negotiable part of every Shar Pei visit. The vet will examine the eyes for any signs of entropion, corneal ulcers, or other ocular issues. A fluorescein stain test is performed if there is any squinting or tearing.
- **Dermatologic and Aural Examination:** The vet will inspect the skin folds for redness, odor, or infection, and will examine the ears with an otoscope to check for inflammation or discharge.
- **Baseline Blood and Urine Tests:** For adult and senior Shar Peis, regular blood tests (to check kidney and liver values) and a urinalysis (to check for protein loss) are recommended. This is crucial for the early detection of amyloidosis, especially in dogs with a history of fever episodes.
- **Owner History:** The vet will ask detailed questions about your dog's behavior, appetite, energy levels, and any episodes of illness, no matter how brief.
## Evidence-Based Management and Prevention
Management of Shar Pei health is a multi-faceted approach. There is no single cure, but a proactive strategy can significantly improve a dog's quality and length of life.
### For Shar-Pei Fever
- **Acute Episode Management:** Treatment for an active fever episode typically involves anti-inflammatory medications (NSAIDs) and pain relief. Your vet will determine the appropriate medication and dosage. Do not give human medications to your dog without veterinary approval, as many are toxic.
- **Preventive Therapy:** For dogs with frequent episodes, a veterinarian may recommend a low-dose, long-term anti-inflammatory protocol to help prevent the inflammatory cascade that leads to amyloidosis. This is a decision that must be made on a case-by-case basis, weighing the benefits against potential side effects.
- **The Role of Colchicine:** Colchicine is a medication used in human medicine to treat familial Mediterranean fever, a condition similar to Shar-Pei fever. It has been used in veterinary medicine to reduce the frequency and severity of Shar-Pei fever episodes and to slow the progression of amyloidosis. This is a prescription medication that requires careful veterinary oversight and monitoring.
### For Entropion
- **Early Intervention:** The best prevention for corneal damage is early surgical correction. If you notice any signs of squinting or tearing, do not wait. Schedule a veterinary appointment immediately.
- **Post-Operative Care:** Strict adherence to the post-operative instructions, including the use of an e-collar and medications, is critical for a successful outcome.
### For General Health
- **Weight Management:** Keeping your Shar Pei at a lean, healthy body weight reduces stress on joints and organs. The mean adult bodyweight in the UK study was 22.26 kg (about 49 lbs), but this varies. Your vet can help you determine the ideal weight for your dog.
- **Skin and Ear Care:** Regular, gentle cleaning of the skin folds and ears with veterinarian-approved cleansers can help prevent infections.
- **Nutrition:** Feed a high-quality, balanced diet appropriate for your dog's life stage. For dogs with kidney issues, a prescription renal diet is essential.
## Unsafe Home Remedies and What to Avoid
The internet is full of well-meaning but dangerous advice. Here are some things you should never do for a Shar Pei with these conditions.
- **Do Not Squeeze or Drain Swollen Hocks:** This will not help and can introduce infection.
- **Do Not Use Human Eye Drops:** Many human eye drops contain medications that are not safe for dogs or can worsen a corneal ulcer.
- **Do Not Give Human Pain Relievers:** Ibuprofen, acetaminophen (paracetamol), and naproxen are highly toxic to dogs and can cause severe illness or death.
- **Do Not Wait and See:** A fever episode or a squinting eye is not something to "wait out." Both require professional veterinary assessment.
## Prevention and Breeding Considerations
For breeders, the health of the breed is paramount. The high prevalence of these painful and life-threatening conditions is a welfare concern.
- **Health Screening:** Responsible breeders should screen their breeding stock for a history of Shar-Pei fever, kidney disease, and eye problems.
- **Selective Breeding:** Breeding decisions should prioritize health over extreme conformation. Selecting dogs with less excessive skin wrinkling and no history of fever or eye issues can help reduce the incidence of these diseases in future generations.
- **Owner Education:** Breeders have a responsibility to educate new owners about the breed's specific health risks and the importance of early veterinary care.
## Limitations and When to Contact a Veterinarian
This article provides a comprehensive overview of the most significant health problems in Shar Peis, but it has limitations. The prevalence data is drawn from a single UK primary-care study, which may not perfectly reflect the global population or the caseload at a specialty referral hospital. The study also may underreport conditions like Shar-Pei fever and amyloidosis because they are episodic and may be managed at home or diagnosed without a formal biopsy.
**Breed-level information cannot predict the health of an individual dog.** Your Shar Pei may be one of the lucky ones who never experiences a fever episode or an eye problem. Conversely, they may face multiple challenges. The information here is a guide to help you be a more informed and vigilant owner.
**Contact your veterinarian immediately if you observe any of the following red flags:**
- **For the Eyes:** Any squinting, excessive tearing, redness, cloudiness, or pawing at the eyes.
- **For Fever:** A sudden fever, lethargy, swollen hocks, or swelling of the face.
- **For Kidney Failure:** Increased thirst and urination, decreased appetite, vomiting, weight loss, or bad breath.
Early intervention is the single most important factor in managing these diseases and ensuring your Shar Pei lives a comfortable life.
## Frequently Asked Questions
### 1. What is the most common health problem in Shar Pei dogs?
The most common specific health problem diagnosed in Shar Peis in a large UK study is entropion, a painful condition where the eyelid rolls inward, with a prevalence of 17.88%.
### 2. What is Shar-Pei fever and how do I know if my dog has it?
Shar-Pei fever is a hereditary autoinflammatory disorder characterized by recurrent episodes of fever, swollen hocks, facial swelling, and lethargy. You should suspect it if your dog suddenly develops these signs, and you should seek veterinary care immediately to manage the episode and prevent long-term organ damage.
### 3. How is Shar-Pei fever linked to amyloidosis?
Each episode of Shar-Pei fever causes a surge of systemic inflammation. This inflammation can cause a protein called Serum Amyloid A to misfold and deposit as amyloid fibrils in organs, most commonly the kidneys. This progressive deposition is called amyloidosis and leads to organ failure.
### 4. Can entropion in Shar Peis be fixed without surgery?
Definitive treatment for entropion is surgical correction. In very young puppies, temporary eyelid tacking may be used to protect the eye until they are old enough for surgery. Lubricating eye drops can provide temporary relief, but they do not correct the underlying conformational problem.
### 5. What are the early signs of kidney failure from amyloidosis in a Shar Pei?
The earliest signs of kidney failure are often subtle and include increased thirst (polydipsia) and increased urination (polyuria). As the disease progresses, you may see weight loss, decreased appetite, vomiting, and lethargy. Regular blood and urine tests are essential for early detection.
### 6. What is the average lifespan of a Shar Pei dog?
According to a 2023 UK study, the median longevity for Shar Peis that died during the study period was 7.28 years. This is shorter than the average for many other breeds.
### 7. Besides fever and eye problems, what other health issues are common in Shar Peis?
The same UK study found that otitis externa (ear infections) is the second most common specific disorder, with a prevalence of 16.36%. Dermatological problems, including pyoderma (skin infections), and behavioral issues like aggression are also common, with group-level prevalences of 21.01% and 7.21%, respectively.
### 8. What should I do if I suspect my Shar Pei is having a fever episode?
If you suspect your Shar Pei is having a fever episode, contact your veterinarian immediately. They will need to examine your dog, rule out other causes of fever, and provide treatment to manage the inflammation and pain. Do not attempt to treat the fever at home with human medications.
**This article is educational and is not a substitute for veterinary diagnosis or treatment.** Always consult with a qualified veterinarian for any health concerns regarding your pet.
## Sources
1. [Is it now time to iron out the wrinkles? Health of Shar Pei dogs under primary veterinary care in the UK.](https://pubmed.ncbi.nlm.nih.gov/38093396/)
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