Tonight I discovered a large lump on the exterior left side of my neck. I have no discomfort or other symptoms. What might it be? its about 1 1/2 inches long and about 1 inch long. It is swollen about 1/2 inch and is hard to the touch. There is no redness or sorreness involved.
Hi. Development of such a large lump overnight without any symptoms is a very rare occurrence. The few possibilities I can think about are