One of the most common concerns we see at Penrith Dental Care is patients who notice their gums bleed when they brush or floss. Many people assume this is normal or that they are brushing “too hard.” In the vast majority of cases, however, bleeding gums are a warning sign that should not be ignored.
The Most Common Cause: Gum Disease
The most common cause of bleeding gums is gum disease (periodontal disease). Bacteria in plaque produce toxins that inflame the gum tissue, making it fragile and prone to bleeding with minimal contact. In its early stage — gingivitis — this inflammation is reversible with professional treatment and improved home care. If left untreated, it progresses to periodontitis, where the infection destroys the bone and tissue supporting your teeth.
Other Causes of Bleeding Gums
- Infrequent flossing: If you rarely floss, starting abruptly may cause temporary gum bleeding as fragile tissue contacts the floss. This should resolve within 1–2 weeks of consistent daily flossing.
- Hormonal changes: Pregnancy increases gum sensitivity and bleeding risk due to hormonal changes. “Pregnancy gingivitis” is well documented and requires careful monitoring.
- Medications: Blood thinners (anticoagulants), aspirin, and some other medications increase bleeding tendency including in the gum tissue.
- Vitamin deficiencies: Severe vitamin C deficiency (scurvy) causes severe gum bleeding, though this is rare in Australia.
- Ill-fitting dentures: Dentures that don’t fit correctly can rub and cause localised gum bleeding and irritation.
When Is Bleeding Gums Serious?
Research links gum disease — the most common cause of bleeding gums — to serious systemic health conditions including heart disease, diabetes, stroke, and complications during pregnancy. While causation in many of these associations is still being investigated, the Australian Dental Association and Healthdirect Australia both advise that treating gum disease is important not just for your oral health but for your overall health.
What to Do About Bleeding Gums
Don’t stop brushing if your gums bleed — this is one of the most common mistakes. Gentle, thorough brushing and daily flossing are precisely what gum disease-inflamed tissue needs. Visit your dentist promptly for a periodontal assessment. A professional scale and clean, combined with improved home care, often resolves gingivitis within weeks. More advanced gum disease may require deeper treatment.
Book Your Gum Assessment at Penrith Dental Care
Bleeding gums deserve professional attention. Book your gum assessment at Penrith Dental Care today. Call (02) 4733 1197 or book online. For information on gum disease, visit Healthdirect Australia on gum disease or the Australian Dental Association.