instruction: hello doctor I am an 18 year old male I have a lump on the inside of my groin it is about the size of a cent australian piece and I can feel it under my skin almost as if the skin moves over the top of it so I do not think it is a dermatological thing I have little spots around my pubic area but I think that is because of the hairs this feels like something different it does not look inflamed from the outside and it is not sore to touch just a bit tender it feels like it rolls underneath my skin but stays in the same spot obviously
output: hi if I am not wrong cents australian piece is around am in size as you have described it is a lymph node in your inguinal region the human body has about 600 lymph nodes their role is to clean antigens from the extracellular fluid it helps in fighting inflammation and infection lymphadenopathy lap is the term to describe the conditions in which lymph nodes become abnormal in size consistency and number a normal sized lymph node is usually less than am in diameter an inguinal lymph node size up to 5 am should be considered normal lymphadenopathy can be called generalized when it affects two or more parts of the body enlarged lymph nodes associated with significant fever night sweats and unexplained weight loss more than 10 in less than six months are considered as red flags it required an urgent evaluation for lymphoma those are not present in your case pain and tenderness on a lymph node is a non specific finding it is typically due to minor infection other causes of the inguinal lymph node are benign reactive lymphadenopathy sexually transmitted disease cellulitis or local infection etc benign reactive inguinal lymphadenopathy is seen in patients who walk barefooted outdoors if it is tender you can take paracetamol keep watch avoid walking barefoot keep hygiene of your private parts if it persists and associated pain or fever or other site engaged lymph nodes you will need an evaluation I hope this helps regards