A dog skin tag is a small, benign growth of skin tissue that hangs from the surface of a dog’s skin, usually attached by a thin stalk called a peduncle. These soft, flesh-coloured or pigmented growths are non-cancerous and extremely common in middle-aged and older dogs, though they can appear at any age.
What Is a Dog Skin Tag?
Skin tags in dogs — medically referred to as fibroepithelial polyps or acrochordons — are benign fleshy outgrowths that develop from the outer layers of the skin. They typically consist of collagen fibres and blood vessels covered by a thin layer of skin. Unlike warts (which are caused by a virus), skin tags are not infectious.
Skin tags commonly appear in areas of friction or where skin folds rub together. Common locations include the chest, armpits, groin, face (around the eyes and mouth), legs, and eyelids. They can range in size from a few millimetres to over a centimetre, and can be solitary or appear in clusters.
The exact cause of skin tags in dogs is not fully understood, but several factors are believed to contribute to their formation. Chronic skin friction, irritation from harnesses or collars, and hormonal fluctuations are all suspected triggers. Genetics also play a role — certain breeds including Labrador Retrievers, Cocker Spaniels, Poodles, and Miniature Schnauzers appear predisposed to developing skin tags.
Signs of a Skin Tag vs. Other Skin Growths
Distinguishing a skin tag from potentially concerning growths like mast cell tumours, lipomas, or warts is important. Here are the key distinguishing features:
| Feature | Skin Tag | Wart | Mast Cell Tumour |
|---|---|---|---|
| Texture | Soft, smooth | Rough, cauliflower-like | Variable — can be soft or firm |
| Shape | Hanging, pedunculated | Flat or raised, attached broadly | Often raised, variable |
| Colour | Flesh-toned or slightly pigmented | Pale pink to grey | Pink, red, or flesh-coloured |
| Growth rate | Slow | Slow | Can grow rapidly |
| Concerning signs | None, unless inflamed | May spread | Redness, swelling, ulceration |
The most important warning sign that a growth may not be a benign skin tag is rapid growth, change in colour, ulceration, bleeding, or evidence that it is bothering your dog (excessive licking, scratching, or biting at the area). Any growth that changes significantly should be evaluated promptly by a veterinarian.
Why Dog Skin Tags Matter for Pet Owners
In most cases, skin tags on dogs are medically harmless and require no treatment. However, there are circumstances where they become a concern. A skin tag in a high-friction area — such as under a collar or harness, between the leg and chest, or on the eyelid — can become irritated, inflamed, or traumatised. A dog that scratches or bites at a skin tag can cause it to bleed and become infected.
Cost-wise, if removal is warranted, surgical excision under local or general anaesthesia typically costs between $200 and $500 depending on the number of growths, their location, and whether biopsy is recommended. Pet insurance policies with wellness or illness riders may cover removal if the growth causes a medical problem. If you are considering coverage for skin conditions, exploring pet insurance options before issues arise is worthwhile.
Attempting to remove skin tags at home — by cutting, tying off with thread, or using over-the-counter human skin tag removers — is strongly discouraged. These methods can cause pain, infection, and significant bleeding in dogs, and do not address any underlying conditions. Always consult a licensed veterinarian for any skin growth removal.
What Pet Owners Should Do About Dog Skin Tags
The recommended approach to dog skin tags follows a straightforward process:
Step 1 — Document the growth. Take a clear photo of any new skin growth when you first notice it, including the date. This creates a baseline for monitoring changes over time.
Step 2 — Have it evaluated by a vet. Any new skin growth should be examined by your veterinarian to confirm it is a benign skin tag and not something more concerning. Your vet can perform a fine needle aspirate (FNA) if there is any doubt about the nature of the growth.
Step 3 — Monitor for changes. If your vet confirms it is a benign tag, note any changes in size, colour, or texture at each regular grooming or check-up. Mention any changes at your next vet visit.
Step 4 — Consider removal if indicated. If the skin tag is in a location that causes repeated irritation, if your dog pays attention to it, or if it is growing, discuss surgical removal with your vet. Removal during a scheduled dental cleaning or other procedure under anaesthesia can reduce overall cost and anaesthetic risk.
Step 5 — Check the whole body regularly. During grooming sessions, run your hands over your dog’s entire body, feeling for any new lumps, bumps, or growths. Early detection of any skin change is always beneficial.