Black Gums in Dogs: Causes, Significance, and Veterinary Advice

Black gums can be normal or indicate pathology.

Benign Causes

• Melanin pigmentation: Common in many breeds (Chow Chow, Shar‑Pei, black‑mouthed dogs).
• Aging: Gradual darkening over years.

Potential Pathology

• Trauma/bruising: Recent injury.
• Periodontal disease: Gingivitis, periodontitis causing inflammation and pigmentation.
• Medication side effects: Some antibiotics, chemotherapeutics.
• Systemic disease: Addison’s disease (hyperpigmentation), oral melanoma (rare but aggressive).

Action Plan

1. Note if the change is new or longstanding.
2. Check for bad breath, bleeding, loose teeth, oral masses.
3. Schedule a veterinary oral exam. Biopsy may be needed for suspicious lesions.
4. Maintain daily dental care (brushing, dental chews, professional cleanings).