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Ringworm

Also known as Dermatophytosis

Ringworm is a common fungal skin infection in pets, causing circular patches of hair loss. It's contagious and zoonotic.

mildinfectiousContagious between animalsCan spread to humansdogscatsrabbitsguinea pigshorses

See a vet now if

  • Persistent hair loss
  • Unusual skin changes

Symptoms

Early signs

  • Circular patches of hair loss
  • Scaly or crusty skin

As it progresses

  • Red, inflamed skin
  • Itching and scratching

Causes

  • Microsporum canis
  • Trichophyton mentagrophytes

Risk factors

  • Warm, moist environments
  • Close contact with infected animals

Body parts affected

SkinHair

How vets diagnose it

  • Fungal cultures
  • Wood's lamp examination

Treatment

At home

  • Regular cleaning and disinfecting
  • Good hygiene

At the vet

  • Topical antifungal treatments
  • Oral antifungal medications

Prevention

  • Regular grooming
  • Avoiding contact with infected animals

Outlook

Prognosis
Excellent with treatment
Typical recovery
4-6 weeks

Ringworm questions

Can ringworm spread to humans?

Yes, ringworm is zoonotic and can spread to humans.

How is ringworm spread?

Through direct contact with an infected animal or contaminated surfaces.

Is ringworm painful for pets?

It can cause discomfort due to itching but is not usually painful.

Can ringworm resolve on its own?

It may resolve without treatment, but this can take several months and increase the risk of spreading.

How do I disinfect my home?

Use a solution of water and bleach to clean surfaces and wash bedding in hot water.

Full clinical detail

Overview

Ringworm, despite its name, is not caused by a worm but by a group of fungi known as dermatophytes. These fungi infect the skin, hair, and sometimes nails of animals, including pets like dogs, cats, and other small animals. It's a highly contagious condition that can spread to humans.

Causes

Ringworm is caused by several types of fungi, with the most common being Microsporum canis, Microsporum gypseum, and Trichophyton mentagrophytes. These fungi thrive in warm, moist environments and can easily spread through direct contact with an infected animal or contaminated objects.

Symptoms & Signs

Early Symptoms

  • Circular patches of hair loss
  • Scaly or crusty skin

Advanced Symptoms

  • Red, inflamed skin
  • Itching and scratching

Emergency Signs

While ringworm is generally mild, severe skin infections or widespread lesions may require urgent attention.

Diagnosis

Diagnosis is typically made through a physical examination and confirmed with diagnostic tests such as fungal cultures, Wood's lamp examination, or skin biopsies.

Treatment Options

Home Care

  • Regular cleaning and disinfecting of the pet's environment
  • Ensuring good hygiene

Veterinary Treatment

  • Topical antifungal creams or ointments
  • Oral antifungal medications for severe cases

Surgical

There are no surgical options for treating ringworm.

Home Care

Maintain a clean environment, wash pet bedding frequently, and limit contact with infected animals to prevent spreading.

Prevention

  • Regular grooming and skin checks
  • Avoiding contact with infected animals

Prognosis & Recovery

With appropriate treatment, the prognosis for pets with ringworm is excellent. Most pets recover fully within 4-6 weeks.

When to See a Vet

  • Persistent hair loss
  • Unusual skin changes

FAQ

  1. Can ringworm spread to humans? Yes, ringworm is zoonotic and can spread to humans.

  2. How is ringworm spread? Through direct contact with an infected animal or contaminated surfaces.

  3. Is ringworm painful for pets? It can cause discomfort due to itching but is not usually painful.

  4. Can ringworm resolve on its own? It may resolve without treatment, but this can take several months and increase the risk of spreading.

  5. How do I disinfect my home? Use a solution of water and bleach to clean surfaces and wash bedding in hot water.

Worried about your pet?

This page is general guidance, not a diagnosis. A vet should examine your pet before any treatment starts.

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