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Cat chin acne
Cat acne is a condition of the hair follicles of the chin and lower lip. The glands in this area produce thick sebum which clogs the follicles and forms blackheads. At first, it looks like grains of dirt or litter stuck under the chin: many...
What is it?
Cat acne is a condition of the hair follicles of the chin and lower lip. The glands in this area produce thick sebum which clogs the follicles and forms blackheads.
At first, it looks like grains of dirt or litter stuck under the chin: many owners try to clean them without success.
If the blocked follicles become infected, the area becomes red, swollen and painful. The disease often progresses in flare-ups, with calm periods.
Commonly observed signs
These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.
Related signs — each one links to its page:
Small black dots under the chin and on the lower lip, resembling grains of dirt that are impossible to remove.
Chin that appears permanently dirty despite cleaning.
In more advanced forms, red spots, pustules, crusts and swelling of the chin.
Localized hair loss, thickened skin.
Pain when touched: the cat shrinks away when the underside of its head is stroked.
Variable itching, with scratching of the chin against furniture or with the hind paw.
In severe cases, noticeably swollen, oozing chin, and sometimes discharge of pus.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Causes and risk factors
The exact origin is not established. We know that the renewal of the skin in the follicles of the chin is poor, which allows sebum to accumulate and form plugs.
Bacteria and yeasts normally present on the skin take advantage of these blockages to multiply and cause infection.
Plastic bowls are often incriminated: their surface scratches, retains bacteria, and the plastic itself can irritate some cats.
Insufficient grooming in an elderly, obese or painful cat promotes the accumulation of sebum and food remains.
Stress and diseases that weaken the skin can accompany flare-ups, without a cause and effect link being demonstrated.
Use of plastic bowls, especially if they are old, scratched or poorly washed.
Shallow bowls forcing the cat to rest its chin on the edge.
Cat that grooms itself little: elderly animal, overweight, osteoarthritic or suffering from mouth problems.
Rich wet diet, which leaves greasy residue on the chin.
Oily skin, or associated skin condition such as an allergy.
No clearly established breed predisposition: all cats can be affected, at any age.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
The veterinarian recognizes the characteristic appearance when examining the chin, but checks that it is not something else.
A tracing or swab sample can be used to look for bacteria and yeast and guide treatment.
An examination of the hair and a sample to look for ringworm are carried out when there is doubt: ringworm, which is the subject of a separate sheet, can cause scabs on the chin.
A search for parasites is carried out in the event of marked itching, scabies and allergy may be associated.
In forms that resist treatment or take on an unusual appearance, a skin sample is analyzed to rule out a tumor or a rarer disease.
Treatment
Mild forms, without redness or pain, sometimes only require monitoring and hygiene measures: many cats keep a few blackheads without ever becoming infected.
The first step is to replace the plastic bowls with stainless steel, glass or ceramic bowls, wide and not very high, washed every day in hot water.
Gentle, daily cleaning of the chin with a warm compress or a prescribed veterinary skin antiseptic product. Never squeeze pimples or use anti-acne products for humans: they are too aggressive for cats' skin and some are toxic.
The hair on the chin can be clipped by the veterinarian to facilitate care and drainage.
Anti-seborrheic shampoos or lotions are prescribed depending on the appearance of the lesions.
In the event of a proven infection, an antibiotic or antifungal is prescribed after examining the samples, for a defined period.
A veterinary anti-inflammatory can be added when the chin is swollen and painful.
Recurrent forms require maintenance treatment and the search for an underlying cause, in particular an allergy.
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Use only stainless steel, glass or ceramic bowls and wash them daily.
Provide a water point separate from the food point, and clean it as often.
Wipe the chin after wet meals in cats prone to recurrence.
Monitor grooming: a cat that stops licking itself may be suffering elsewhere, particularly in the mouth or joints.
Inspect the chin from time to time, moving the hairs aside, to spot blackheads before they become infected.
Possible complications
Deep bacterial infection of the chin, with significant swelling and pain.
Boils and small abscesses that rupture and leave oozing sores.
Scarring and permanent thickening of the skin after repeated outbreaks.
Extension of inflammation to the lips, hindering food intake.
Frequent recurrences when the cause of maintenance, often the bowl, has not been corrected.
When to see a veterinarian
Your cat's chin is red, swollen or hot.
There are spots, pus or bleeding scabs.
Your cat flinches or growls when you touch the underside of its head.
The lesions extend to the lips or cheeks.
The blackheads keep coming back despite changing the bowl.
Your cat eats less or seems embarrassed to catch its food.
Prognosis
Good overall. Light forms are controlled with simple hygiene measures and changing the bowl.
Infected forms heal with appropriate treatment, but sometimes take several weeks.
The tendency to recur is common: it is then a condition to be managed over time rather than cured once and for all.
Old and severe forms can leave a thickened and slightly deformed chin, without consequences on general health.
Frequently asked questions
It's just grains of litter stuck together, right?
This is what we often believe, but these blackheads do not disappear when cleaning: they are follicles blocked by sebum. As long as there is no redness or pain, simple hygiene is enough, but you have to know how to recognize them.
Can I pierce the buttons?
No. Squeezing makes the inflammation worse, pushes the infection under the skin and is very painful for the cat. Care must remain gentle, and an infected lesion requires prescribed treatment.
Do we really need to change the bowls?
Yes, this is the most effective and simplest measure. Plastic scratches and traps bacteria. A stainless steel or ceramic bowl washed every day often eliminates recurrences by itself.
Is it contagious to my other animals or to me?
No, chin acne is not contagious. If several cats in the household have scabs on their chin at the same time, it should be checked that it is not something else, such as ringworm.
References
AAFP — American Association of Feline Practitioners
Content reviewed by the TunisieVet editorial team · Updated 09 August 2026
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