A tooth infection, or a tooth abscess, is a collection of pus and bacteria that forms inside the tooth or gum. Without proper treatment, tooth infections can spread to other areas of the body, and this can lead to serious and potentially life threatening complications. To reduce the risk of complications, a person should seek treatment for a tooth infection as early as possible. Learn more about the signs and symptoms of a tooth infection spreading, how to treat such infections, and how to prevent them here. It is rare for a tooth infection to spread to other parts of the body. However, if this does happen, the consequences can be severe. The following symptoms could indicate that a tooth infection has spread to another part of the body. A person who has a suspected tooth infection and develops any of these symptoms should seek immediate medical attention: The mouth is full of bacteria from foods, saliva, and plaque. Sometimes, these bacteria can enter a tooth or the area below the gum...