Well it depends: I have a painless lump on the base of my neck but that's part of my spine! I'm guessing it is the same for you. But if you're really worried and think it is something different, then you should seek out a doctor's advice.
It sounds as if it could be a growth. You need to consult a physician, who may recommend that the lump be removed by surgery. (It's usually a simple, minor operation),
Answer .
tumor
This sounds like what i have. I've had ultrasounds and biopsies and other tests done and found out its a goitre.. ie. a 3.5cm cyst, on my thyroid in my neck. It's harmless. And blood tests showed my...