Myiasis in dogs is a serious condition caused by fly larvae (maggots) that develop on the skin or in open wounds. Flies lay their eggs on moist, dirty skin or untreated wounds. Once the eggs hatch, the larvae feed on the dog’s tissues. Dogs that are weak, paralyzed, dirty, or have reduced mobility are especially vulnerable—particularly in the summer months.

Symptoms of Myiasis in Dogs

The clinical signs of myiasis are often easy to recognize:

• Open wounds with visible larvae (maggots)
• Redness and swelling around the wound
• Foul odor from the infected area
• Pain, agitation, excessive licking or scratching

If left untreated, the infestation can quickly worsen, potentially threatening your dog’s life.

How Is Myiasis Diagnosed?

Diagnosis of myiasis is straightforward. The presence of larvae on the skin or in a wound is enough to confirm infestation. In more severe cases, additional tests may be needed to assess the depth of tissue damage and rule out underlying issues.

How to Treat Myiasis in Dogs

Treatment should be initiated immediately to remove larvae and support healing. It usually involves the following steps:

• Addressing underlying issues: The wound or skin condition that allowed the infestation must be treated to avoid recurrence.
• Cleaning and shaving the area: The infested area is shaved and cleaned to remove debris and expose all affected tissue.
• Manual removal of larvae: All larvae must be carefully extracted. In severe cases, this may require sedation and wound debridement under anesthesia.
• Medications:
  • Antiparasitics to kill any remaining larvae
  • Antibiotics to treat or prevent bacterial infections
  • Anti-inflammatories to reduce pain and swelling

Your vet may also prescribe wound-care products or topical solutions to promote healing.

What’s the Prognosis for Myiasis?

The prognosis depends on the extent of the infestation and your dog’s overall health. If treated early, most dogs recover fully. However, delayed treatment or advanced infections—especially in weak or elderly dogs—may lead to a more guarded outlook.

Why You Should See a Vet Immediately

If you see maggots or suspect a skin infestation, consult a veterinarian right away. Quick action is essential to:

• Eliminate larvae
• Prevent infection
• Treat underlying wounds or hygiene issues
• Ensure your dog’s comfort and safety

Myiasis is painful and dangerous—but with fast treatment, your dog can return to a healthy, happy life.