TL;DR: Skin tags on dogs are common, non-cancerous growths that are usually harmless and do not require emergency care unless they change shape, bleed, or become inflamed.
What is a skin tag on my dog and what does it look like?
A skin tag, medically known as an acrochordon, is a common, non-cancerous growth often found on dogs. On the chest, these usually appear as small, soft, flesh-colored bumps that may hang off the skin by a thin stalk. They are essentially an overgrowth of skin cells and collagen, frequently occurring in areas of friction or as a dog ages.
Is a skin tag on my dog considered a medical emergency?
- The urgency level for a small, stable skin tag is Low.
- Most skin tags are purely cosmetic and do not cause your dog any discomfort.
- You should monitor the growth regularly to ensure it remains stable.
- An emergency visit is typically not needed unless the tag becomes red, inflamed, bleeds, or changes rapidly in size or shape.
How does providing a photo help a vet triage my dog's skin growth?
- Providing a clear, well-lit photograph is one of the most helpful things you can do for a veterinary professional during a remote triage.
- A photo allows a vet to see the base of the growth, its texture, and its exact location.
- This visual information helps differentiate a harmless skin tag from other concerns, such as a tick, a wart, or a potentially more serious skin tumor.
Clinical Context (Merck Veterinary Manual)
Acrochordons, also known as cutaneous tags, soft fibromas, or fibrovascular papillomas, are common, benign skin lesions in older dogs. These lesions can be single or multiple and may develop in any breed, although large breeds may be at increased risk. They typically appear as pedunculated exophytic growths, often covered by a verrucous epidermal surface. Treatment is optional, but a biopsy is recommended to confirm the diagnosis and differentiate them from other skin lesions, such as cutaneous papillomas. Acrochordons are amenable to excision, electrosurgery, and cryosurgery; however, dogs that develop one acrochordon are prone to developing others over time. Histologically, fibromas resemble collagenous nevi or cutaneous tags.
Chapter: Dermatology, Oncology
Source: The Merck Veterinary Manual, 11th Edition (Page 955)