Pruritus in rabbits, rodents, and ferrets

Area of Science:

• Veterinary Dermatology
• Comparative Medicine
• Exotic Animal Medicine

Background:

• Pruritus is a common clinical sign in small exotic mammals, presenting unique diagnostic and therapeutic challenges.
• Differential diagnoses for pruritus in rabbits, rodents, and ferrets are often species-specific and require careful consideration.
• Topical treatments pose risks due to the high surface area to body weight ratio in these animals.

Purpose of the Study:

• To review specific pruritic dermatological conditions in rabbits, rodents, and ferrets.
• To provide a differential diagnosis list for pruritus in these species.
• To discuss potential causes, diagnostic considerations, and treatment challenges for pruritic diseases in small exotic mammals.

Main Methods:

• Literature review and case observations of pruritic conditions in rabbits, rodents, and ferrets.
• Discussion of differential diagnoses including dermatophytosis, sarcoptic mange, bacterial dermatitis, and parasitic infestations.
• Consideration of environmental factors like stress and overcrowding contributing to skin lesions.

Main Results:

• Dermatophytes, though not typically pruritic in guinea pigs, should be considered.
• Pruritic ulcerative dermatitis associated with Staphylococcus aureus was noted in rats, with toenail clipping showing benefit.
• Syphacia spp. pinworms can cause perineal pruritus in rats, gerbils, and hamsters.
• "Move over buddy syndrome" (MOBS) in mice, hamsters, gerbils, and rats is characterized by bite wounds mistaken for self-trauma.

Conclusions:

• Accurate diagnosis of pruritus in small exotic mammals requires a broad differential list and careful clinical evaluation.
• Treatment strategies, often extralabel, must account for potential toxicity and adverse effects in these sensitive species.
• Client education regarding extralabel drug use and risks associated with topical treatments is crucial for safe and effective management.