Pass the tissues, please! Is your cat sneezing more than usual? Mild sneezing is a normal biological function in cats, so it's not uncommon for them to sneeze now and then. However, if your cat is sneezing continually or more frequently than usual, it may signal that something is wrong and you need to visit your veterinarian. Here are the basics of cat sneezing so you know what to expect.

How Often Should Cats Sneeze?

Cats sneeze for many of the same reasons humans sneeze. For example, it's normal for cats to sneeze if they have an itchy nose or sniffed something irritating. What's considered a normal amount of sneezing can vary, but it's generally limited to a couple of times a day. Importantly, normal sneezing isn't accompanied by nasal discharge or other signs of illness.

Occasional sneezing is nothing to worry about. But if you notice your cat suddenly sneezing more than usual, sneezing repeatedly or showing other signs they're sick, something is amiss.

Signs of Illness

Signs your cat's sneezing may indicate an underlying concern include:

• Nasal discharge of any color
• Nasal redness or swelling
• Open-mouth breathing
• Pawing at the face
• Coughing
• Fever
• Lethargy
• Loss of appetite
• Vomiting
• Bad breath
• Bloody saliva

If you notice unusual sneezing, particularly in combination with any of these signs, visit your vet.

Causes of Sneezing in Cats

Anything that affects or irritates your cat's nasal passages can cause sneezing. Some conditions are self-limiting (don't require any treatment), while others are more serious and require veterinary care. Here are some of the more serious conditions that can cause sneezing in cats.

Upper Respiratory Infection

One of the most common causes of sneezing in cats is an upper respiratory infection. Viruses (such as herpes), bacteria, fungi and protozoa can infect your cat's nasal passages, causing signs such as sneezing, nasal discharge, fever, red eyes and loss of appetite.

Dental Disease

It might come as a surprise that dental disease can cause sneezing in cats, but it's true! The roots of your cat's teeth on the upper jaw are close to their nasal passages. If an upper tooth root becomes infected, it can cause swelling and inflammation, resulting in sneezing and nasal discharge. Dental disease can also cause bad breath, loss of appetite, teeth chattering and bloody saliva.

Allergies or Irritants

Cats can be sensitive to many inhaled irritants and allergens, including dust, cigarette smoke, spices, cleaning products, scented candles, pollen and dust mites, leading to sneezing and red eyes. Allergens and irritants may also contribute to feline asthma — another potential cause of excessive cat sneezing.

Foreign Material

Foreign objects, such as a blade of grass, can become stuck in your cat's nose when they attempt to munch on or sniff something. This can result in violent, repetitive sneezing, bloody discharge and facial pawing. Generally, cats must be sedated to remove foreign objects safely. Never attempt to remove something yourself without consulting your vet — instead, seek care right away.

Nasal Polyp

Nasal polyps are benign (noncancerous) inflammatory growths that can occur in your cat's nose or throat. The cause of polyps in cats isn't well understood. Signs of polyps include sneezing, nasal discharge, difficulty breathing and bad breath.

Tumor

Benign and malignant (cancerous) tumors in the nose can cause sneezing, nasal discharge and bad breath. Some nasal tumors can also lead to appetite loss and weight loss.