What Causes Acne Around the Mouth?

Acne at the corners of the mouth may result from prolonged consumption of greasy foods, leading to gastrointestinal dysfunction and subsequent endocrine imbalance. If acne appears at the mouth corners, a dermatological evaluation is recommended. So, what causes acne at the corners of the mouth?

What Causes Acne at the Corners of the Mouth?

Acne at the corners of the mouth may be caused by viral infection, excessive internal heat (“fire”), or endocrine imbalance leading to overactive local sebaceous glands. Antiviral medications may be used if a viral cause is suspected. Maintaining good local hygiene during this period is essential. Diet should remain light and bland; spicy or irritating foods should be avoided.

In adolescents, excess androgen secretion and infection with Propionibacterium acnes (now Cutibacterium acnes) are common contributing factors. Excess sebum production is often associated with unhealthy lifestyle habits—such as staying up late, smoking, and alcohol consumption—all of which may contribute to recurrent perioral acne. Areas prone to higher sebum output include the T-zone (forehead, nose, and chin), temples, and perioral region—including the corners of the mouth. Excess sebum in the T-zone is a major contributor to acne development. In females, menstrual regularity should be assessed. Irregular cycles—characterized by inconsistent frequency or volume—warrant gynecological evaluation, including pelvic ultrasound, to rule out polycystic ovary syndrome (PCOS)-associated acne.

A dermatological examination is advised. Microneedling may be an effective treatment for facial acne, including perioral lesions. After microneedling, avoid applying makeup. Drinking warm water regularly may help stimulate skin metabolism. We hope this information is helpful to you!