Lots of interesting things can be put in your Word 2016 document that you don't want published or to share with others. These items include comments, revision marks, hidden text, and other items useful to you or your collaborators, which would mess up a document you share with others. The solution is to use Word's Check for Issues tool, like this:
Ensure that your document is finished, finalized, and saved.
Click the File tab.
On the File screen, the Info area should be selected. If not, click the word Info.
Click the Check for Issues button.
Choose Inspect Document.
The Document Inspector window shows up. All items are selected.
Click the Inspect button.
After a few moments, the Document Inspector window shows up again, listing any issues with your document. The issues shown are explained, which allows you to cancel the Document Inspector to fix individual items.
(Optional) Click the Remove All button next to any issues you want to clear up.
Now that you know what the issues are, you can always click the Close button and return to your document to manually inspect them.
Click the Close button, or click Reinspect to give your document another once-over.
You can go forward with publishing your document or continue working.