Have lymph node behind ear is enlarged to about the size of a pea..doesn't hurt , also have an abscessed tooth on same side, infection or cancer?

Prob okay: It is likely to due to the abscess. However, if you have had this enlarged lymph node for at least 2 weeks then you should have your primary physician examine it. This lymph node may have been palpated on a prior physical examination and they can best determine the next step in management. If it is due to the abscess then spontaneous resolution would be expected w/ treatment of abscess.

Don't worry: It is likely to due to the abscess, however, if you have had this enlarged lymph node for at least 2 weeks then you should have your primary physician examine it. This lymph node may have been palpated on a prior physical examination and they can best determine the next step in management. If it is due to the abscess then spontaneous resolution would be expected.

Likely related..: The lymph node and the infected tooth are likely related. Lymph nodes can get enlarged for many reasons - but being sick or having infection is a common one. If you get it checked out by your doc and they think it's an enlarged node, they'll probably be give it a few weeks to see if it resolves.

Likely infectious: If the abscess is on the same side as the lymph node, it's likely related. However, if the infection in the tooth resolves and the lymph node doesn't then a thorough ENT examination is indicated. Lymph nodes in this area can arise from numerous processes in the head and neck.

Likely infection: Lymph nodes in this area do occasionally enlarge with a dental infection. Start at your dentist's to examine and treat the abscessed tooth, and have him or her examine the swelling behind your ear with an eye to reassuring you that it is related, or suggesting a referral to your md if seems like a separate problem.

Are you sure it's a lymph node or couldn't it be something else. Lots of reasons for "lumps." Infected teeth can cause lymph node enlargement as node tries to trap infection from spreading to other organ systems. See Dentist immediately to have infection treated. If lump persists, see your GP.