Cat Sneezing and Shaking: Possible Causes & When to Act
Cat sneezing is a common sign that may stem from irritants, infections, or nasal inflammation, and understanding the pattern helps determine when veterinary care is needed.
Quick Answer
When a cat has sneezing along with shaking or tremors, the combination may indicate a more significant underlying condition. Shaking or tremors alongside another symptom may indicate pain, fever, toxin exposure, neurological involvement, or significant distress. This combination warrants prompt veterinary attention, as some causes can be serious. A veterinarian can assess the cat and determine the appropriate course of action. Cat sneezing can result from dust, pollen, litter dust, viral upper respiratory infections such as feline herpesvirus or calicivirus, bacterial infections, or nasal irritation. Occasional sneezing is often harmless, but persistent sneezing, nasal discharge, or sneezing with lethargy warrants veterinary evaluation. Contact a veterinarian if both signs are present, especially if either is severe or worsening.
SYMPTOM TRIAGE
Answer a few questions about your cat's signs and receive general guidance on how urgently to seek veterinary care.
This tool does not diagnose conditions or replace a veterinarian.
What Sneezing Can Look Like
Sneezing in cats is a forceful expulsion of air through the nose. A single sneeze is rarely concerning, but repeated episodes may signal an underlying issue. Cats may also show nasal discharge, watery eyes, or pawing at the face. The character of the sneeze, whether dry, wet, or accompanied by mucus, can provide useful information for a veterinarian. When sneezing occurs alongside shaking or tremors, the combination provides important information about what may be happening. Shaking or tremors alongside another symptom may indicate pain, fever, toxin exposure, neurological involvement, or significant distress. This combination warrants prompt veterinary attention, as some causes can be serious. A veterinarian can assess the cat and determine the appropriate course of action.
What May Be Associated with Sneezing
Similar signs can have different causes, and the following are possible explanations a veterinarian may consider.
Irritants and Allergens
Dust, pollen, household cleaners, perfumes, scented litter, and cigarette smoke can irritate the nasal passages and trigger sneezing. Cats exploring dusty areas or freshly cleaned spaces may sneeze in response to airborne particles.
Viral Upper Respiratory Infections
Feline herpesvirus (FHV-1) and feline calicivirus (FCV) are common viral causes of sneezing in cats. These infections often produce sneezing alongside nasal discharge, eye discharge, and sometimes fever. Kittens and cats in multi-cat households are particularly susceptible.
Bacterial Infections
Bacterial respiratory infections can follow or accompany viral infections. They may produce thick or colored nasal discharge and persistent sneezing. A veterinarian can assess whether antibiotics are appropriate.
Foreign Bodies
A grass awn, seed, or other small object lodged in the nasal cavity can cause sudden, repeated sneezing. This is more common in cats that spend time outdoors.
Nasal Polyps or Tumors
In some cases, chronic sneezing may be associated with nasal polyps or, less commonly, tumors. These conditions may cause one-sided discharge or persistent sneezing over weeks or months.
The Combination of Sneezing and Shaking
Shaking or tremors alongside another symptom may indicate pain, fever, toxin exposure, neurological involvement, or significant distress. This combination warrants prompt veterinary attention, as some causes can be serious. A veterinarian can assess the cat and determine the appropriate course of action. The presence of both signs together may narrow the list of possible causes and help a veterinarian prioritize diagnostic steps.
What to Monitor
Tracking details helps a veterinarian assess the situation.
- Frequency: How often the sneezing occurs and whether it is increasing
- Nasal discharge: Whether it is clear, cloudy, yellow, green, or blood-tinged
- Eye involvement: Watery eyes, redness, or discharge
- Appetite and energy: Whether the cat is eating normally and acting alert
- Breathing: Whether breathing appears labored or noisy
- Duration: How long the sneezing has been occurring
- When each sign started and whether they began at the same time
What You Can Safely Do Next
For a cat sneezing occasionally but otherwise acting normally, observe the environment for irritants. Switching to unscented, low-dust litter and avoiding strong fragrances may help. Ensure the cat is eating, drinking, and breathing normally. Do not administer human cold medications, antihistamines, or nasal sprays. If sneezing persists beyond a few days or other signs develop, contact a veterinarian. When sneezing and shaking or tremors occur together, do not delay in seeking veterinary guidance, as the combination may indicate a more significant issue.
When to Contact a Veterinarian
Some situations require immediate veterinary attention, while others may allow for monitoring. When in doubt, contacting a veterinarian is the safest approach.
Emergency Signs
Contact a veterinarian or emergency clinic immediately if you observe any of the following:
- Difficulty breathing or open-mouth breathing
- Sneezing accompanied by significant nasal bleeding
- Lethargy, refusal to eat, or dehydration
- Blue or pale gums
These signs may indicate a serious condition that requires prompt evaluation. In the US, the ASPCA Animal Poison Control Center can be reached at 888-426-4435 if toxin exposure is suspected. In the UK, contact your veterinarian or the Veterinary Poisons Information Service for guidance.
Non-Urgent Signs
The following may warrant a routine veterinary call rather than emergency care:
- Occasional sneezing with normal appetite and energy
- Clear nasal discharge without other signs
- Sneezing that improves after removing a suspected irritant
When sneezing occurs alongside another sign, veterinary evaluation is recommended sooner rather than later, as the combination may indicate a more significant condition.
Frequently Asked Questions
Is it normal for cats to sneeze occasionally?
An occasional sneeze, especially after dust or litter exposure, is often normal. However, frequent sneezing, sneezing with discharge, or sneezing persisting more than a few days should be evaluated by a veterinarian to rule out infection or other causes.
Can I give my cat antihistamines for sneezing?
Human antihistamines should never be given to a cat without veterinary guidance. Some human medications are toxic to cats, and dosing differs significantly between species. A veterinarian can recommend safe options if appropriate.
What does it mean when my cat has sneezing and shaking or tremors?
The combination of sneezing and shaking or tremors may indicate a more significant issue than either sign alone. Shaking or tremors alongside another symptom may indicate pain, fever, toxin exposure, neurological involvement, or significant distress. This combination warrants prompt veterinary attention, as some causes can be serious. A veterinarian can assess the cat and determine the appropriate course of action. A veterinarian can assess both signs together and recommend appropriate diagnostics and care.
SYMPTOM TRIAGE
If you are concerned about your cat's sneezing and shaking or tremors, use the symptom triage tool to get general guidance on how urgently you should seek veterinary care based on the signs you are observing.
This tool provides general information and does not replace a veterinarian's diagnosis.
Sources
- Cornell Feline Health Center. "Respiratory Infections in Cats." Retrieved July 2026.
- Merck Veterinary Manual. "Respiratory Diseases of Cats." Retrieved July 2026.
- VCA Hospitals. "Feline Asthma." Retrieved July 2026.
- ASPCA. "Common Toxic Hazards for Pets." Retrieved July 2026.
Disclaimer
This article and the PawAI Symptom Triage tool provide general information and do not replace examination, diagnosis, or treatment by a licensed veterinarian. If your cat shows emergency signs, contact a veterinarian or emergency clinic immediately.