this is the location of the inguinal lymph nodes however it will take an examination to confirm this. lymph nodes can react (enlarge or become tender) in response to infections or inflammation in their local neighborhood. there are other causes of lumps (like sebaceous cysts lipomas etc. ) so i encourage you to get it checked out.
pea sized lump above groin and to the right where i feel a pulse. painful to touch can move around a little bit