<s>[INST] i have swollen gums behind my two bottom teeth ..what is the cause? It hurts, and when i push on it white stuff comes out. I brush, floss, and us mouthwash daily. I had a tongue ring before, but took it out like 6 months ago because it hurt my bottom teeth. Now, like two days ago my bottom teeth hurt and behind two it is swollen. [/INST] Hello, Thanks for posting your query. The swollen gums and white stuff coming out may be due to- abscess developed from dental caries/periodontal infection/impacted wisdom teeth/traumatic injury. a thorough clinical and x-ray examination will help to rule out the cause. Meanwhile,maintain good oral hygiene. get your teeth cleaned by a dentist. The decayed teeth has to be restored/root canal treated. tHe impacted/fractured teeth if present,has to be treated. the pus has to be drained and curetted. hope this helps </s>