Hello, I want to know which lymph nodes are dangerous. I suspect that a lymph node has come out of my neck just above the Adam's apple. It is not protruding or reddened. It is felt only when touched with a finger. Slightly more swollen is the comparison with the other side of the same place. 1 month ago I had sex with a prostitute and I'm worried that it's not a symptom of HIV. Please share everything you know about lymph nodes with me. thanks in advance