Skin problems in dogs are not uncommon – but if sudden bald, scaly patches appear, it could be a fungal infection. This fungal infection is not only uncomfortable for your dog but can also be contagious to other animals and even humans. In this article, you will learn how to recognize and treat ringworm in dogs and how to prevent future infections.
What is Ringworm in Dogs?
Ringworm, also known as dermatophytosis, is usually caused by dermatophytes (filamentous fungi) such as Microsporum canis, Trichophyton mentagrophytes, or Microsporum gypseum. These fungi affect the skin, hair, and sometimes also the nails. Young dogs, animals with weakened immune systems, or dogs from shelters or breeders where there is close contact with other animals are particularly often affected.
Fungal spores are very resistant and can survive in the environment for weeks to months – which sometimes makes treatment challenging.
How do I recognize ringworm in dogs?
The symptoms of ringworm can vary depending on the dog, but typical signs include:
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Circular, bald spots in the fur
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Scaly, reddened, or crusty skin
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Itching – sometimes severe, sometimes barely noticeable
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Brittle or altered nails
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Skin changes on the face, paws, or belly
The infestation often starts locally and spreads further without treatment. It is particularly dangerous that ringworm can easily be confused with other skin diseases such as mites, hot spots, or allergies.
Is ringworm contagious?
Yes – and that's an important point! Ringworm is zoonotic, meaning it can be transmitted to humans. Children, the elderly, or people with weakened immune systems are particularly susceptible. Other pets can also become infected. Therefore, it is important to act early if ringworm is suspected and to take appropriate hygiene measures.
How is ringworm in dogs diagnosed?
Only a veterinarian can definitively determine whether your dog is suffering from ringworm. Various diagnostic methods are available for this:
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Wood's lamp: Some, but not all, fungal species fluoresce under UV light.
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Microscopic examination: A skin scraping or plucked hairs are examined.
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Fungal culture in the laboratory: Here, the pathogen is precisely identified – but this usually takes 1–2 weeks.
An accurate diagnosis is important to be able to treat specifically and not lose valuable time.
How is ringworm in dogs treated?
The treatment of ringworm requires patience, as fungal infections are persistent. Depending on the extent of the infestation, the following measures are used:
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Topical treatment: Antifungal ointments, creams, or medicinal shampoos are applied directly to the affected areas.
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Systemic therapy: For severe or widespread infestation, the veterinarian prescribes tablets with an antifungal effect.
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Environmental cleaning: Blankets, beds, carpets, toys – everything must be thoroughly and regularly cleaned to prevent re-infection. Special disinfectants can help kill the spores.
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Skin barrier care: Healthy skin regenerates faster and offers less surface for pathogens to attack.
Tip: Care products with natural antibodies, such as Doderm Repair Gel, can gently support the skin barrier without disturbing the delicate microflora of the skin. Especially after the fungal infection has subsided, such care helps to soothe the skin and strengthen it long-term.
Try Doderm Repair Gel for Dogs!
How long does healing take?
The duration of treatment depends on the severity – you should generally expect 4 to 8 weeks. It is important to continue the treatment consistently until the end, even if the symptoms have already disappeared. Otherwise, there is a risk that the fungus will return.
Can ringworm in dogs be prevented?
Ringworm cannot be completely prevented – but you can do a few things to reduce the risk:
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Strengthening the immune system through a balanced diet and low stress
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Regular grooming and checking for skin changes
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Clean environment, especially in households with multiple animals
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Gentle care products that do not dry out or irritate the skin
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Caution when in contact with infected animals (e.g., in dog schools or shelters)
Conclusion
Ringworm is uncomfortable but treatable – if detected early. Pay attention to changes in your dog's coat or skin and seek veterinary advice if you suspect it. With consistent treatment, a lot of patience, and the right care, your four-legged friend can soon be healthy and relaxed again.
Especially after an infection, the skin needs time to regenerate. This is where Doderm Repair Gel can help your dog: It supports the skin in its natural healing process, soothes irritated areas, and strengthens the balance of the skin flora – all without aggressive ingredients. Ideal for sensitive dog skin and daily care after a fungal infection.
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