Bleeding Gums? What It Means and How to Respond

Discovering a trace of blood when spitting after brushing can be unsettling. Some immediately see it as a sign of serious illness; others, on the contrary, pay little attention to it. Why, exactly, do gums bleed? What are the possible causes? And above all, what should you do?

In Europe, nearly two out of three people report noticing gingival bleeding, most often after brushing. If this happens to you—whether you are in Geneva or elsewhere—you are far from alone. Most often, this bleeding reflects gum inflammation (gingivitis) or periodontal disease. But other factors can also come into play.

Why Are My Gums Bleeding?

Poor Oral Hygiene

If plaque and tartar accumulate at the gum line, they irritate the gingival tissue: it becomes inflamed, swells and becomes more fragile, hence the bleeding when you brush or floss. This is the most common cause of gingivitis.

Periodontitis

The inflammation that is no longer contained in the gum then reaches the deep periodontium (cementum, ligament and alveolar bone): this is periodontitis.

Prevalence

According to the GBD 2021 synthesis, 20 to 50% of the world’s population has active periodontitis, and 8 to 19% a severe form. In Switzerland, the national cohort “Swiss Oral Health Monitoring” reports that nearly one in two adults over 45 already shows visible bone loss on radiography.

Warning Signs

• Pockets ≥ 4 mm, gingival recession, slight mobility, persistent bad breath.

Recent aggravating factors:

• Poorly controlled diabetes (risk x 2 to x 3)
• Regular smoking (up to +70% bone loss)
• Chronic vitamin D deficiency: correlated with increased periodontal inflammatory activity.

Why it is critical:

Periodontitis is now classified as a co-factor for cardiovascular diseases and type 2 diabetes. The new EFP 2023 recommendations therefore emphasize screening from age 35, especially in smokers and diabetic patients.

Pregnancy

During pregnancy, rising estrogen and progesterone levels make gums more sensitive. Result: they become inflamed more easily (pregnancy gingivitis) and may bleed.

Vitamin Deficiency

A deficiency in vitamins B2, B3, B6, B9, B12, C or D weakens the mucous membranes. Vitamin C is particularly involved: when it is lacking, gingival bleeding increases—especially in children—and often improves as soon as the deficiency is corrected.

Medication Side Effects

Certain treatments can increase gum bleeding, particularly anticoagulants (aspirin, clopidogrel, heparin, etc.). Other molecules (paracetamol, amiodarone, amoxicillin, paroxetine, ketoprofen, zolpidem, enalapril, ramipril, furosemide) are sometimes involved, particularly in women over 50.

What to Do in Case of Gingival Bleeding?

Improve Oral Hygiene

Mild and occasional bleeding often disappears with meticulous brushing twice a day and regular flossing. Need a reminder? Consult our dedicated article on proper brushing techniques.

Consult a Dentist

There is no such thing as “home” scaling: only professional scaling and root planing removes hardened biofilm. The 2023 protocol from the University Clinic of Geneva recommends:

• Digital periodontal assessment to measure pocket depth.
• High-frequency ultrasonic scaling + manual root planing under local anesthesia if periodontal pockets ≥ 4 mm.
• Antiseptic irrigation (0.12% chlorhexidine or 0.5% hypochlorite)
• Personalized hygiene plan: soft-bristle sonic brush + appropriate interdental brushes, check-ups every 3 to 6 months.

Good to Know

During each follow-up, the dentist measures bleeding on contact with the gum using a small probe. This is called the bleeding score—a clinical index recognized by the WHO—very reliable for assessing inflammatory status. If this score decreases by at least 30% after 3 months, it means the treatment is working well and the risk of relapse is significantly reduced.

In Geneva

Dental Geneva applies this protocol in accordance with cantonal integrated health recommendations. These clinical steps remain the strategy with the highest level of evidence to stop bone loss and make gums pain-free again, without multiplying antibiotic prescriptions.

Correct Nutritional Deficiencies

Your doctor can detect a deficiency (vitamin C, D or B group) and prescribe appropriate supplementation. Clinical cases describe rapid reduction in bleeding after correction of these deficits.

Have Medication Treatment Reviewed

If no local cause is found, consider your medications. A simple dose adjustment or change of molecule, under medical supervision, is sometimes enough to resolve the problem.

Need Personalized Advice?

During your next appointment at Dental Geneva, do not hesitate to ask any questions about bleeding gums. A hygienist or dentist will take the time to assess your situation and propose an appropriate action plan.

See you soon!