What causes boil filled with puss and blood below the tooth?
Patient: Hi,  I have gone through a root cannel for one of my tooth 3 years ago, after 3 years i am facing a boil filled with puss and bllod in my jaw just below the tooth (which has undergone root cannel). the issue is there for 6 weeks, please advice on possible cause . is it infection  ??? Doctor: Hello, Thank you for consulting with HCM.This boil of puss, shows that again there is an infection in the same tooth or the adjacent tooth in which you got the root canal treatment done. Because in case of infection an abscess forms below the tooth which is the collection of pus only.So you should visit your dentist and get an x-ray done of that area to show the infection and get the treatment accordingly. Hope it will help you.