Can Mold Make Pets Sick? What Owners Should Know
Last updated October 25, 2026
The short answer
How Mold Affects Pets
Mold releases tiny spores into the air. Pets breathe those spores in and can also pick them up through their skin or fur. Dogs and cats with allergies may react with watery eyes, sneezing, or itchy skin. Older pets or those with breathing conditions can have a harder time.
Some molds produce toxins called mycotoxins. In large amounts, these can cause more serious issues like tremors or stomach problems. This is not common, but it is possible. If your pet seems unusually tired, has trouble breathing, or vomits after being near moldy areas, contact a veterinarian right away.
Signs Your Pet May Be Affected
Watch for changes in your pet's behavior. Coughing, wheezing, or a runny nose can point to mold exposure. Skin irritation, like scratching or red patches, is another clue. Pets may also lose their appetite or seem less energetic than usual.
Not all pets react the same way. A young, healthy dog might show no signs, while a senior cat with asthma could struggle quickly. Pay attention to what is normal for your pet. If anything seems off, a vet can help you figure out the cause and the next steps.
- Coughing or sneezing more than usual
- Scratching, biting, or licking their skin
- Red, watery, or itchy eyes
- Lethargy or reduced appetite
- Vomiting or diarrhea after exposure
- Difficulty breathing, especially in small pets
What to Do If You Suspect Mold
Start by finding the mold source. Look in damp spots like basements, bathrooms, or under sinks. Water damage from leaks or flooding can feed mold growth. Remove the moisture as soon as you can, and dry out the area to stop the mold from spreading.
For small patches of mold on hard surfaces, you can clean them with soap and water. Porous materials like drywall or carpet may need to be removed. If the mold covers a large area or keeps coming back, local water damage pros can help with inspection and drying. They can also check for hidden moisture.
- Keep pets out of the moldy room while you clean
- Open windows and use fans to improve airflow
- Wear gloves and a mask when handling moldy items
- Throw away soft items that cannot be cleaned
- Fix leaks and reduce humidity to prevent regrowth
- See a vet if your pet shows any symptoms
Preventing Mold Growth at Home
Mold needs moisture to grow. Control humidity levels in your home, especially during warm, humid summers. Use exhaust fans in bathrooms and kitchens, and run a dehumidifier in damp basements. Fix dripping pipes or roof leaks quickly to avoid hidden water damage.
In areas with humid summers, indoor moisture can rise. Keep an eye on spots where water might collect, like window sills or under appliances. Regular cleaning and good airflow help keep mold from taking hold in the first place.
When to Call the Pros
If mold covers more than a small patch, or if it is inside walls or ductwork, you may need professional help. Local water damage pros can inspect the area, find the moisture source, and dry out the structure. They can also remove water-damaged materials safely.
Professional drying and dehumidification can help prevent mold from returning after a leak or flood. For serious mold problems, a mold professional may be needed to assess health risks. You can also check your insurance policy to see if mold damage is covered. Policies vary, and your insurer decides what is covered.
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Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (952) 522-6744Frequently asked questions
What are the first signs of mold sickness in pets?
Common early signs include sneezing, coughing, watery eyes, and itchy skin. Some pets may scratch more or lose energy. If you notice these symptoms after mold exposure, keep your pet away from the area and call a veterinarian.
Can mold cause long-term health problems in pets?
Long-term exposure to mold can worsen breathing conditions like asthma or allergies in pets. It may also lead to chronic skin issues. While serious toxicity is rare, ongoing exposure is not safe. Remove the mold and dry the area to protect your pet.
How do I clean mold safely around pets?
Keep pets out of the room while you clean. Wear gloves and a mask, and open windows for airflow. Use a mild soap and water for hard surfaces. Discard porous items like carpet or drywall. Dry the area thoroughly to prevent regrowth.
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