A neck ditch is a small groove or furrow that runs along the bottom of your neck. Think about the little valleys or canyons you might see on a map, but on your own body instead of on paper.
Some people have a very noticeable neck ditch while others don't have one at all. The reason why some people have it while others don't has to do with genetics and the structure of your body.
This little groove isn't just there for looks - it actually serves an important purpose. The neck ditch helps to separate the muscles in your neck from the ones in your shoulders. By doing so, it allows your neck to move more freely and comfortably.
While some people might be self-conscious about their neck ditch, it's actually a perfectly normal part of the human body. So if you have one, don't worry! It's just a natural part of who you are.