I have a hump ion the back of my neck for years. I lost weight and it did not disappear and the dr says I can have surgery do you recommend it?

What is the cause. Of the hump. If it is fat it can be a lipoma. Some medications also make a fatty hump on the neck for example steroids. It can be a cyst. I would visit your physician so they can give you a diagnosis and recommend treatment.
Remove wliposuction. Yes, this is commonly and unfortunately referred tomas a buffalo or dowager's hump. It is commonly associated with steroid use. It may often persist after cessation of steroid use or weight loss. Rarely, it may be a lipoma. Removal is commonly performed with liposuction.