My son age 7 has a lump on the base of his skull behind his ear the size of a marble.  He says it is sore to touch, and I have notice one coming up at the other side too, although it is smaller.  He seems healthy, but has been tired recently. Should I take him to the doctor?
Hello! Welcome on Chat Doctor ! This lump in this region could be a reactive lymph node related to a pharyngitis or inner ear infection. For this reason, I recommend consulting with his pediatrician for a careful physical exam and some blood lab tests (complete blood count, PCR, sedimentation rate). Hope you will find this answer helpful! Best wishes,