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What Causes Ringworm in Dogs

What Causes Ringworm in Dogs

Understanding Ringworm

Ringworm, despite its name, is not caused by a worm but rather a type of fungus known as dermatophytes. These fungi live on the surface of the skin and hair and multiply in the outer layer of the skin causing an infection. It is called ‘ringworm’ because of the characteristic ring-like rash that it often produces on the skin of humans and animals.

Common Sources of Infections

You, as a caregiver, may wonder, where does my pet get this infection from?

  1. Direct Contact with Infected Animals: This is the most common source of ringworm in dogs. The fungus can be passed from one infected animal to another, often through direct skin-to-skin contact or through contact with contaminated objects.

  2. Environment: The fungi that cause ringworm are also found in the environment. They can survive for long periods in soil, on grooming equipment, in bedding, and on other objects in the environment.

  3. Humans: Although less common, dogs can also get ringworm from humans who are infected with the fungus.

Symptoms of Ringworm

Being vigilant about the signs can help provide the right care to your pet. Some of the most common symptoms of ringworm in dogs include:

  • Red, scaly, or itchy skin
  • Hair loss, often in circular patches
  • Crusty or flaky patches on the skin
  • Darkened or reddened areas of skin
  • Dandruff

Preventing Ringworm in Dogs

Prevention is always better than cure. Here are some preventive measures you can take to minimize your dog’s risk of getting ringworm:

  • Regularly clean and disinfect your dog’s living area and grooming tools
  • Avoid crowded, stressful environments which can weaken your dog’s immune system
  • Limit your pet’s contact with stray animals or those known to be infected
  • Regularly check your pet’s skin for any abnormalities

Treatment for Ringworm

Consult a veterinarian if you suspect your dog has ringworm. They may recommend a combination of topical and oral antifungal medications to treat the infection. It’s important to note that treatment may take several weeks, and your pet may still be contagious during this time.


Frequently Asked Questions

Q: Can humans get ringworm from dogs?

A: Yes, ringworm can be transmitted from dogs to humans and vice versa.

Q: How long does it take for ringworm to go away in dogs?

A: With proper treatment, most cases of ringworm in dogs will start to improve within 2 weeks.

Q: Is ringworm in dogs a serious condition?

A: While ringworm can cause discomfort, it is typically not a serious condition and can be effectively treated with medications.

Q: Can ringworm be prevented?

A: While it may not be completely preventable, regular cleaning and disinfecting of your pet’s environment can significantly reduce the risk.


Remember, as a caregiver, your furry friend relies on you for their health. Stay informed, stay vigilant, and ensure that they lead a healthy, happy life.