Furuncles and Furunculosis in Dogs and Cats
📝 Summary
A furuncle is a localized skin abscess around a hair follicle; repeated or widespread furuncles are called furunculosis. They appear as small, painful pus-filled bumps and can progress to deep pyoderma. Good hygiene, parasite control, and veterinary care limit spread.
1 Symptoms
A furuncle is a localized pus-forming inflammation of a follicle, its sebaceous gland, and the surrounding skin and tissue. Many furuncles appearing together or recurring are furunculosis.
It begins as a small, hard nodule that grows and may form tiny pustules; the area becomes swollen and painful, and the animal is sensitive to touch. The lesion can spread deeper, break open into a small ulcer, then scar.
Whole-body signs are usually absent unless furunculosis is out of control, when it can lead to pyoderma, cellulitis, infected clots in veins, or even sepsis. Main organisms are staphylococci and E. coli; fungal skin infection can follow.
2 Causes and Transmission
Poor hygiene, skin dirt, abrasions, and parasite infection combine to let bacteria invade the follicles.
3 Diagnosis
The veterinarian examines the lesions and, for recurrent cases, takes samples for culture and sensitivity to choose the right antimicrobial.
4 Treatment
Local care is combined with whole-body treatment. Veterinary-prescribed topical antiseptics and, when needed, systemic antimicrobials based on sensitivity are used.
Small lesions are cleaned and drained; larger ones are opened and flushed. Underlying parasites are treated and the skin is kept clean.
5 Prevention
Bathe and groom regularly, control parasites, and keep the environment clean.
Have recurring or widespread furuncles evaluated by a veterinarian to prevent deeper infection.
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