Gum Health: Causes, Symptoms & How to Fix Them

Bleeding, swollen, or receding gums are almost always a response to bacterial plaque along the gumline — not a sign you're brushing too hard or just genetics. Gingivitis, the earliest stage, is fully reversible with consistent plaque removal and, in many recurring cases, addressing the underlying imbalance in the mouth's bacterial ecosystem. Left unaddressed, it can progress to periodontitis, where bone and gum tissue loss becomes permanent rather than reversible. The fix starts with mechanical basics — brushing technique, interdental cleaning, professional cleanings on schedule — and, for symptoms that keep coming back despite good hygiene, looking at what's disrupting your oral microbiome in the first place.

The guides below break down specific symptoms — bleeding when you brush, swelling, recession — by their most likely cause, what a dentist actually checks for at each stage, and which home-care changes make a measurable difference versus which ones are marketing noise. Because gum health and the oral microbiome are tightly linked, several guides connect back to our Oral Microbiome pillar for the underlying mechanism.