Should you be concerned about a lump on the back of the neck where it meets the spine?

Answer:

If the lump wasn't there before, yes you should be concerned. It may be nothing. It may be a cyst, or it may be something more serious. You need to go to a doctor. In person. No one is able to (or will) diagnose you online, whether they have medical training or not. You only have one body. Don't chance something serious on the response of strangers online. Please contact a health professional immediately so you can find out what the lump is and get treatment if necessary.

First answer by Yinzer. Last edit by Yinzer. Contributor trust: 1178 [recommend contributor recommended]. Question popularity: 112 [recommend question].