Hi I have a lump in the back of my head behind my right ear for 10 months. Sometimes I feel aching pain in it but it doesnt hurt. Its the size of a quarter. There is no abnormal shape or no discoloration. Every time I stress it get as big as a quarter when im not stressing it gets as small as a nickel.  I dont have any signs or symptom of infection. What could this be.
Hi, you have a lump on the head behind the right ear. for 10 months.  It appears to be the Desmond cyst, or lipoma, it won't do any harm, if it is growing very big you can consult a surgeon for removal. If you want to get it removed now itself you can get it removed without any risk. Thank you.