Some of the larger lymph nodes can be palpated easily - especially in thinner persons.
Lymph nodes normally enlarge in infection and diseases of inflammation. After the infection has been treated, or the inflammatory process has passed, they normally decrease in size.
Lymph nodes that persistantly remain elevated should be evaluated for cancer (i.e. a lymphoma).
You can discuss this with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
kevinmd_b
Also don't concentrate on your body so much that you are checking it every single day because if you feel around long enough odds are you will find something that is odd even if it is normal anatomy.
Of course I am not a doctor and you should discuss this with your PCP.