Concern mom

my 22yr.old son suffers from migraines,he also has hit his head a lot.my question is that i felt the back of his head and he has a medium size lump on the back bottom of his head.im concern hes not,should i be?

[Dr Santos]

Hi,
How is your son? What other symptoms are present? The lump could be due to injury, swollen lymph nodes, inflammation or cyst. If it persists, it is best that you have this checked by a doctor for proper evaluation. Treatment will depend on the underlying cause.  Take care and do keep us posted.