What Does Ringworm Look Like On A Dog? Discover Common Symptoms and Treatments

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As a dog owner, it’s important to know the signs of ringworm and what to do if your pooch becomes infected. Ringworm is a fungal infection that can affect both dogs and humans, but it’s more common in young dogs or those with weaker immune systems.

If left untreated, ringworm can spread quickly and cause discomfort for your furry friend. This article will explain how to identify the symptoms of ringworm in dogs and outline the available treatments.

“Recognizing the early warning signs is key to preventing the infection from spreading.”

We’ll also discuss some common misconceptions about ringworm and provide tips on how to prevent its transmission.

By the end of this read, you’ll have a better understanding of what ringworm looks like on a dog and how to keep your pup happy and healthy!

Overview of Ringworm in Dogs

What is Ringworm?

Ringworm, also known as dermatophytosis, is a fungal infection that affects the skin, hair and nails of dogs. It can be a common condition among dogs of all ages and breeds, but some dogs may be more prone to getting it than others.

The fungus responsible for ringworm thrives in warm, humid environments such as kennels, grooming facilities or outdoor areas where multiple animals congregate. The disease can be transmitted through direct contact with an infected animal or by coming into contact with contaminated objects like grooming equipment, collars, bedding, or even human clothing.

How is Ringworm Transmitted?

As previously mentioned, the most common mode of transmission for ringworm is through physical contact with an infected individual, whether that’s another dog, cat or any other animal harboring the fungus. Puppies are particularly susceptible as they have weaker immune systems, making them vulnerable to contracting infections from adults in their immediate environment.

Ringworm spores can remain active on surfaces for several months and are resistant to many disinfectants. This means that even if you clean up an area well, the chances of re-contamination are still high. It’s therefore important to take preventive measures to ensure your pet does not get or spread the fungus. For instance, avoiding interacting with strays, providing a clean environment for your pets, washing hands and laundry frequently, and treating existing infections promptly to avoid spreading it to others.

Common Breeds Prone to Ringworm

While any breed of dog can catch ringworm, certain breeds are at higher risk compared to others. Here are just a few examples:

  • Poodles: With their thick curly coat, poodles are more susceptible to getting ringworm as the moisture and lack of airflow on their skin provide an ideal breeding ground for fungi.
  • Boxers: Some boxer breeds may have a genetic predisposition towards weakened immune systems, presenting higher chances of infection.
  • Dalmatians: Dalmatians can suffer from weakened immunity due to defective genes making them more vulnerable to various infections including ringworm.
  • Greyhounds: Greyhounds often come into contact with other dogs and animals through racing or hunting activities increasing their chances of contracting fungal diseases like ringworm in the process.

If you suspect your dog has ringworm, it’s essential to seek veterinary help immediately. Early diagnosis and treatment increases your pet’s chances of recovery, reduces its spread throughout the household, and helps prevent future episodes of the disease. One of the most definitive ways of confirming whether your dog has ringworm is by performing specialized diagnostic tests such as a fungal culture under controlled laboratory conditions.

“Preventing ringworm transmission starts with good hygiene – regularly brushing and bathing your pets, disinfecting any grooming tools used on multiple dogs, frequent sanitization of communal areas – these are all things that every pet owner should incorporate into their daily routine.” -Dr. Greg Hammerly, DVM

What Are the Symptoms of Ringworm in Dogs?

Dogs are prone to different types of skin infections and among them, ringworm is one of the most common fungal infections that affect dogs. While it can be difficult to detect at first, there are certain symptoms of ringworm in dogs you should be aware of. Here’s what you need to know about the signs and symptoms of ringworm in your pooch:

Visible Skin Lesions

Ringworm manifests itself as circular shaped inflammation on a dog’s skin, where hair loss occurs both inside and around the edges of the mark. These lesions typically look like scaly patches, with raised red rings or bumps around the edges. The lesions may also become crusty and oozing if left untreated. Please note that these marks can appear anywhere on a dog’s body but are more commonly found on paws, ears, nose snout and legs.

“Affected animals will often develop one or more patchy areas of hair loss with rough edges, dryness, and redness surrounding each lesion.” -VCA Hospitals

Itching and Scratching

Another symptom of ringworm in dogs is excessive itching, scratching, or licking the affected area. Dogs experience severe discomfort and try to relieve themselves by excessively grooming their bodies which could lead to secondary bacterial infections.

“Symptoms include itchiness, scaling, crusting, broken hairs, gray-white hairs, swelling, thickening, reddened skin, oval scabs, and circular patches of hair loss” -Merck Veterinary Manual

Hair Loss and Bald Patches

In adddition to visible skin lesions, dogs with ringworm tend to lose their hair around affected areas resulting in bald patches This hair loss can occur in small or large areas depending on the severity and duration of the fungal infection.

“Ringworm lesions are usually fairly round with normal-looking skin in the center; scaling, crusting, and hair loss surround these lesions.” -PetMD

If you suspect your dog has ringworm, it’s essential to take them to the vet immediately. Early diagnosis and treatment will reduce the risk of secondary infections, as well as help control its spread to other pets or even humans.

How Is Ringworm Diagnosed in Dogs?

Physical Examination and Medical History

A veterinarian will typically begin the diagnostic process by performing a physical exam on the dog and taking a detailed medical history. The vet may ask questions about any symptoms that the dog has been experiencing, such as itching or hair loss, as well as any recent changes to the animal’s health or behavior.

The vet may also conduct a thorough examination of the dog’s skin, looking for signs of ringworm which include circular bald spots with raised edges and redness. Additionally, there are other skin conditions that have similar presentations, so it is important to rule out other possibilities.

Skin Scraping and Fungal Culture

One of the most common methods used to diagnose ringworm in dogs is through a skin scraping and fungal culture. In this procedure, the veterinary professional will remove small samples from the dog’s skin and fur using a scalpel blade or other tool. These samples are then examined under a microscope for evidence of fungal growth that indicates the presence of ringworm.

To confirm the diagnosis, the vet may also perform a fungal culture in which the collected samples are placed into a special media to see if they grow. After several days, the results can indicate whether or not ringworm is present.

Wood’s Lamp Examination

In addition to a skin scraping and fungal culture, a Wood’s lamp examination may be performed to help identify ringworm. In this test, the dog’s skin is exposed to ultraviolet light that causes certain types of fungi, including those causing ringworm, to fluoresce, making them easier to visualize.

It is worth noting, however, that not all species of ringworm will fluoresce under a Wood’s lamp, so a negative result does not necessarily rule out ringworm as the cause of symptoms.


If other diagnostic methods have been inconclusive, or if another underlying condition is suspected to be causing the dog’s skin issues, a biopsy may be recommended. In this procedure, a small piece of skin will be removed and sent to a laboratory for microscopic examination.

A biopsy can help determine whether there are any abnormal cell growths on the skin that might indicate cancerous tumors or other non-fungal conditions. It can also provide information about the type of fungus present in cases where ringworm has been difficult to diagnose through other means.

“Your veterinarian will consider your dog’s age, breed, lifestyle, overall health, and laboratory results when diagnosing canine ringworm.” – AKC.org

The diagnosis of ringworm can be challenging as it shares many similarities with other skin conditions that affect dogs. Your vet will likely use several different tests and examinations to determine the root cause of your pet’s symptoms and develop an appropriate treatment plan.

What Are the Treatment Options for Ringworm in Dogs?

If you suspect that your furry friend has ringworm, it’s crucial to seek treatment promptly. Without proper care, ringworm can spread easily and cause discomfort to both you and your pet. Here are some of the most common and effective treatments for ringworm in dogs:

Topical Antifungal Medications

One of the best ways to treat ringworm on a dog is with topical antifungal medications. These creams, ointments, shampoos, and sprays contain active ingredients that help fight off fungal infections and soothe irritated skin.

When choosing a topical medication, make sure to read the label carefully and follow instructions closely. Some products need to be left on for a specific amount of time before rinsing off while others require daily application over several weeks.

Keep in mind that topical treatments may not be enough to cure severe cases of ringworm. In these situations, your vet may recommend combining a topical medication with an oral antifungal drug.

Oral Antifungal Medications

In addition to topical treatments, oral antifungal medications are another option for treating ringworm in dogs. These medications come in the form of pills or liquids and work by killing fungi from within your pet’s body.

Your veterinarian will determine if an oral medication is necessary based on the severity of your dog’s ringworm infection. Depending on the case, treatment could last anywhere from 3 to 8 weeks, or even longer.

It’s important to note that like all medications, oral antifungal drugs may have side effects. Some dogs experience diarrhea, vomiting, loss of appetite, or other symptoms while undergoing treatment. Be sure to report any unusual behavior or symptoms to your veterinarian right away.

“In addition to treating the dog with prescription antifungal medication, it is necessary to clean the environment thoroughly to prevent further contamination.” -Dr. Karen Becker

Whether you choose a topical or oral medication, be sure to monitor your pet’s condition carefully throughout treatment. If you notice any changes in behavior, appetite, or skin appearance, contact your vet right away for guidance on next steps.

With proper care and attention, most cases of ringworm in dogs can be successfully treated. Be patient and diligent in following through on your vet’s recommendations, and your furry friend will soon be back to his happy and healthy self!

How to prevent ringworm in dogs?

Practice Good Hygiene

Dogs that are not regularly groomed and their hygiene is not properly maintained are at a higher risk of getting ringworm. Regular grooming and bathing your dog with an antifungal shampoo can help prevent the fungus from spreading. Also, make sure to keep their nails trimmed so they don’t scratch themselves if they do get infected.

Keep Your Dog’s Living Space Clean

The best way to prevent your pet from developing ringworm is by keeping its environment clean. Disinfecting items in your home such as bedding, toys, floors, and grooming tools can reduce the spread of spores. Changing out your dog’s bedding frequently or using disposable covers can also be helpful.

Avoid Contact with Infected Animals

Ringworm in dogs is highly contagious and can easily spread from animal to animal through physical contact. If you suspect any animals around your dog have ringworm, it’s better to avoid them until treatment has been completed. Avoiding public areas like dog parks and daycares where your pet may come into close contact with other animals is also recommended.

Boost Your Dog’s Immune System

In some cases, pets will develop ringworm due to a weakened immune system. Feeding good quality food helps in building immunity which allows it to fight off fungal infections quickly. Adding natural probiotics and supplements to their diet can improve digestion and strengthen the immune system towards certain types of illnesses. A regular exercise routine could help boost overall health and aid in reducing stress levels as well.

“Good nutrition promotes healthy skin and coat, including resistance to parasitic diseases like ringworm.” -PetMD

By taking steps to prevent ringworm, you can help ensure your dog’s health and wellbeing. Remember that prevention is always better than cure! So follow these tips in addition to periodic vet checkups to keep a happy, healthy, and ‘ringworm-free’ furry friend.

When Should You Take Your Dog to the Vet for Ringworm?

Visible Skin Lesions

If you suspect your dog has ringworm, look out for visible skin lesions. According to petMD, “ringworm typically appears as circular areas of hair loss throughout the body”. These areas will be scaly and may become crusty or begin oozing puss. They are also often inflamed and accompanied by redness.

Visible ringworm on dogs doesn’t always appear circular! It can also present itself in large round ovals. Regardless of its shape, if you notice a lesion anywhere on your dog’s coat then it is critical that you take them into your vet so that they receive treatment before the condition spreads further around their body or to other animals or humans in your household.

Persistent Itching and Scratching

Ringworm infections can cause an intense itching sensation which lead the dog to scratch or bite its affected parts excessively. This leads to skin trauma and more damage, opening up new opportunities for bacterial superinfections.

This is why persistent scratching or biting could be another sign to look out for indicating your dog might have contracted ringworms. While these symptoms alone do not confirm whether the pup has ringworm or some other infection, only with the help of a vet, one can conduct certain diagnostic tests and determine the root cause behind such behaviour and rule out any severe health issue.

“An animal presenting consistent signs of skin irritation and chewing or biting at themselves should be taken to the veterinarian,” says Dr. Jerry Klein, AKC chief veterinary officer.

Taking preventive measures like vaccinating your pet regularly, keeping their surroundings clean, dry and sanitized are recommended to keep fungal jock itch at bay because this particular infection tends to spread quickly and act as a precursor for other fungal skin disorders, one must keep an eye out and have all the necessary information on What Does Ringworm Look Like On A Dog?.

If your furry four-legged friend is exhibiting any visible symptoms such as circular areas of hair loss or persistent itching and scratching then it’s always best to call in veterinary assistance. They can assess if these signs could be due to ringworm and start treatments to prevent it from spreading further.

Frequently Asked Questions

What are the Symptoms of Ringworm on a Dog?

Ringworm is a fungal infection that can affect a dog’s skin, hair, and nails. The most common symptom is circular, red, scaly patches on the skin. These patches may be itchy and can spread over time. Hair loss can also occur in the affected areas. In severe cases, the skin may become thickened and discolored. Some dogs may not show any symptoms at all, but can still spread the infection to other animals or humans.

What Does Ringworm Look Like on a Dog’s Skin?

Ringworm on a dog’s skin appears as circular, red, scaly patches that can range in size from a few millimeters to several centimeters in diameter. The patches may be raised and can have a scabbed or crusty appearance. The affected area may be itchy and hair loss may be present. In some cases, the patches may merge together and form larger areas of skin irritation. If left untreated, the skin may become thickened and discolored.

Can Ringworm on a Dog Spread to Humans?

Yes, ringworm on a dog can spread to humans. The infection is transmitted through direct contact with an infected animal or contaminated objects such as bedding, grooming tools, or toys. People with weakened immune systems, children, and the elderly are at a higher risk of developing ringworm from a dog. Symptoms in humans include circular, itchy, red patches on the skin. Treatment for ringworm in humans involves antifungal medication and good hygiene practices.

How Can I Treat My Dog’s Ringworm?

Treatment for ringworm on a dog involves antifungal medication, either in the form of topical creams or oral medication. It is important to keep the affected area clean and dry, and to avoid contact with other animals or humans until the infection has cleared up. Regular bathing and grooming can also help to prevent the spread of infection. In severe cases, your veterinarian may recommend shaving the affected area or using medicated shampoos.

What Precautions Should I Take to Prevent Ringworm on My Dog?

To prevent ringworm on your dog, it is important to practice good hygiene and keep your dog’s environment clean. Regular bathing and grooming can help to remove any fungal spores that may be present on the skin or hair. Avoid contact with other animals that may be infected, and wash your hands thoroughly after handling animals or contaminated objects. If you suspect that your dog may have ringworm, seek veterinary advice and treatment immediately.

When Should I Take My Dog to the Vet for Ringworm?

If you suspect that your dog has ringworm, it is important to seek veterinary advice and treatment as soon as possible. Your veterinarian can perform a skin test to confirm the diagnosis and recommend the appropriate course of treatment. If left untreated, ringworm can spread to other animals and humans, and can cause serious skin infections. Regular check-ups with your veterinarian can also help to detect and treat ringworm early.

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