White spots on gums can develop because of a fungus overgrowth ... such as a deep cleaning. 6. Periodontal abscess Periodontal abscess is a chronic gum condition that can cause pockets of pus ...

A gum boil is an abscess that forms on the gum. An abscess is a painful swollen bump filled with pus (which includes living and dead white blood cells, bacteria, and debris). Depending on where ...