Black and red gums
Black or red gums can reflect irritation, inflammation, injury, or pigmentation, so the pattern and other symptoms matter.
The short answer
Red gums commonly indicate inflammation, while a dark area may be natural pigment, bruising, trapped debris, or a less common lesion that needs examination. A dentist checks whether the colour is diffuse or local and whether the surface is swollen, ulcerated, painful, or bleeding.
Why can plaque make the gumline look red and inflamed?
Gingival redness often comes from plaque irritating the gingival margin, with blood vessels becoming more prominent. Brown or black colour can come from melanin, tobacco-related pigmentation, a healing bruise, amalgam or other material particles, or a change in the oral lining that cannot be identified from a photo alone.
How should you clean red gums without disturbing a dark patch?
Brush gently along the gumline with fluoride toothpaste and clean between the teeth daily; do not scrape, bleach, or pick the dark area. Note when it appeared, whether it is changing, and any bleeding, tenderness, bad taste, ulcer, or loose tooth, then arrange an examination.
When does a dark or red gum area need dental assessment?
Book a dental visit for persistent redness, a new or enlarging dark patch, repeated bleeding, swelling, an ulcer, or pain. Seek urgent care for rapidly increasing facial swelling, fever, difficulty swallowing or breathing, or bleeding that will not settle with firm pressure.
What should you ask about the cause of unusual gum colour?
Ask whether the colour is consistent with gingivitis, pigmentation, trauma, a foreign material, or another lesion, and whether periodontal measurements or an image are needed. Ask what finding would require review or biopsy and how to monitor the area.
Frequently asked questions
Can brushing make red gums bleed?
Bleeding usually reflects inflamed tissue, although forceful brushing can injure it; use a gentle technique and arrange an assessment if it continues.
Can a dark gum patch be normal?
Some people have stable natural melanin pigmentation, but a new or changing patch should be examined.
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.