Dog Skin Skin Tags - What They Are and When to Worry
Dog skin tags (fibrovascular papillomas), are benign growths that appear on the skin. They are common in older dogs and large breed dogs, and while generally harmless, it's good to have your vet check them to rule out any more serious concerns.
The exact cause of skin tags is not fully understood, but they are thought to be related to genetics, age, and possibly friction or skin trauma.
Written by Dr. Mariella Roberts, Veterinary Surgeon, Animal Trust Vets CIC | Published May2025 | Review date May 2027 | This advice is for UK pets only and is not a replacement for seeing a vet
Symptoms
Single or multiple growths from the skin.
They can be on a stalk i.e. thick on the end and thin on the bottom.
If damaged or infected, they may be bleeding, red, sore with discharge
What Causes Skin Tags on Dogs
The exact cause of skin tags is unknown, but certain factors can increase the likelihood of their development:
Genetics
Some breeds, such as Labrador Retrievers, Boxers, and Doberman Pinschers, may be more prone to skin tags.
Friction and Irritation
Skin tags often appear in high-friction areas like the armpits and chest, where the skin rubs against itself or collars/harnesses.
Allergies and Skin Conditions
Chronic inflammation or irritation from skin allergies may contribute to the formation of skin tags.
Ageing Process
Older dogs tend to develop benign skin growths more frequently.
When to contact your vet
While most skin tags in dogs are harmless and don't require immediate veterinary attention, it's important to monitor them for any changes. If a skin tag becomes irritated, bleeds, or changes in size, texture, or colour, a vet visit is recommended. If your dog is bothered by the tag (licking, scratching, or rubbing), or if multiple tags appear, seek your vet’s advice.
Diagnosis
History: Your vet will ask you when the lumps were noticed, if any changes occurred during the time in size, location, causing discomfort to your pet, etc.
Physical exam: Your vet will examine the growth for its size, shape, colour, texture, and whether it is causing any irritation to the dog and will gently feel the growth to assess its firmness or softness.
Sample and examine under a microscope. This can be conscious or during a removal procedure.
Treatment: Should You Remove a Dog’s Skin Tag?
Most warts can be left alone.
Surgical removal: The most common method involves snipping the tag off with scissors under local or general anaesthesia.
Ligation (tie-off): A suture or surgical thread is used to cut off the blood supply to the tag, causing it to detach over time.
How to Prevent Skin Tags in Dogs
While it's difficult to completely prevent skin tags in dogs, certain measures can help minimise their development and ensure your dog's overall health. Regular grooming, a balanced diet, and maintaining a healthy weight are key preventative measures. Additionally, addressing skin irritation and ensuring collars/harnesses fit properly can reduce the likelihood of skin tags forming.
Outlook
Canine skin tags are generally benign and non-threatening, often just a cosmetic concern. While they can be removed if they cause problems, most dogs don't require treatment and can live happily with them. However, it's always a good idea to have any new growth checked by your vet to rule out any potential issues.
Concerned About Your Dog? Act now!
