Dog over-grooming – when should I see a vet?

Updated 2026-09-30 · 1 sources

Based on: PDSA

Book a vet visit

This is not usually an emergency on its own – contact your vet if it lasts, gets worse or your dog seems unwell in any other way. Common reasons include itchy skin, pain, stress and boredom.

When to contact a vet What to do now

Contact a vet if you see any of this

Sudden staining around the mouth when this is new
Bad breath
A skin problem
Dental disease

What you can do now

Contact your vet
Note when it started, how often it happens and what else you see
Take a photo or short video to show the vet
Keep fresh water available
Let your dog rest somewhere calm

Don't

Do not give any human medicine
Do not wait if it gets worse

What it can mean

Over-grooming can cause saliva staining when a dog licks an area of its body excessively.^[1] It can be linked to itchy skin, pain, stress or boredom.^[1] Allergic skin disease or skin allergies are listed as a very common cause.^[1]

Other signs that can come with it

Brown, red, orange or pink saliva staining

sudden

Possible causes

Skin problems
Pain
Stress
Allergic skin disease or skin allergies
Parasites
Arthritis
A wound
A grass seed
An interdigital cyst
Boredom

What the experts say

“Overview. Most of the time dogs develop saliva staining when they lick an area of their body excessively. Itchy skin, pain, stress, and boredom are some of the most common causes of saliva staining in dogs. Saliva staining can be brown, red, orange or pink.”
— PDSA [1]

If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

OkPaw is on Android now – an iPhone version is on its way.

Common questions

What can over-grooming mean?

It can be linked to itchy skin, pain, stress, boredom, allergic skin disease, parasites, arthritis, a wound, a grass seed or an interdigital cyst.^[1]

Can excessive licking cause staining?

Most of the time, dogs develop saliva staining when they lick an area of their body excessively; it may be brown, red, orange or pink.^[1]

When should I contact a vet?

If your dog suddenly develops staining around the mouth when this is new, check their teeth, lips and skin and contact your vet if you notice anything unusual, such as bad breath, a skin problem or dental disease.^[1]

Sources

PDSA

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

The same page for cats →