Hi, what specialist should i see for a hump on my neck. there is no pain.

I would start with: your primary care provider. That doctor may be able to determine cause/ treatment or if not - can consult with the appropriate specialist. Take care.

Start with your GP: to determine the nature of the hump, is it soft tissue or due to underlying bone, what imaging studies, if needed, should be performed, then decision on whether to refer to an neurosurgeon, surgeon, etc.. or no need, best wishes