What is the difference between turkey neck and a double chin?

double chin is fat only and turkey neck is fat and/or skin.  I suggest you get a formal consultaiton, there are many options for both these.  Sometimes one treatment works to treat both.  Best, Dr. Emer.

Turkey neck is usually a excess of neck skin with or without loose neck muscle (platysma muscle) that hangs underneath the chin making the neck look like the excess of skin present in the turkey' neckDouble chin usually is related with significant excess of fat in the neck underneath the chin that makes the person look like they have tow (double) chin when looking from the front John Mesa MD
Board Certified Plastic Surgeon
New York City (#NYC) & New Jersey (#NJ) 

Interesting question- my take on this is that a 'turkey neck' is from excess skin and muscle that you frequently see in patients 65 and older (look at my website, there are a few in their late 60's/70's with turkey necks). A double chin can be seen in younger patients and is due to extra fat under the skin causing a bulge, it does not necessarily have any extra skin yet. In the younger patients with a double chin, simple liposuction can do the trick to contour the neck- turkey necks usually require some combination of liposuction and removal of extra skin with or without muscle tightening.