Healthy gums don't bleed, not from brushing and not from flossing. Bleeding is inflammation, and inflammation means bacteria have settled in where you can't reach them. Here's what your gums are saying, and what I listen for.
Stage one: gingivitis
Plaque along the gum line irritates the tissue. Gums turn puffy and red and bleed easily. The good news: gingivitis is completely reversible. A thorough cleaning and two weeks of honest flossing usually clears it, and the bleeding stops. If you're flossing and seeing blood, keep going. It's the sign you're reaching the problem.
Stage two: when it moves below the gum line
Left alone, plaque hardens into tartar under the gums, where no brush or floss reaches. The gums pull away, forming pockets, and the bone that holds your teeth begins to dissolve. This is periodontal disease. It usually doesn't hurt, and that's what makes it dangerous.
How we tell the difference
Your hygienist measures the space between your gum and tooth with a small probe. One to three millimeters is healthy. Four and up, with bleeding, means the disease has started. Those numbers, along with your X-rays, decide what kind of cleaning you need.
Why I can't just do a "regular cleaning"
If your measurements show active gum disease, the Dental Board doesn't allow me to do a routine cleaning instead of a deep one, even if you ask. It isn't an upsell. A routine cleaning would polish the part you can see and leave the infection underneath. A deep cleaning, done gently and with numbing, actually treats it.
Other things bleeding gums can mean
Pregnancy hormones, some blood thinners and medications, vitamin deficiencies and smoking all make gums bleed more easily. Tell us what you take. It changes how we read the signs.
Bleeding is the early warning. Use it.
Gum disease is the leading reason adults lose teeth, and it's almost entirely preventable when caught at the bleeding stage. If your gums bleed, don't stop flossing; book a visit. Our gum disease page explains how treatment works at mend.
Quick answers
Owner of mend dental in Irvine and a graduate of the University of the Pacific's Dugoni School of Dentistry. Dr. Sison writes and reviews every article for clinical accuracy.
Meet the team →
