Like headings, lists can also help organize and simplify content in a document. If using lists, be sure to use Microsoft Word's built-in lists formatting, so that screen readers can identify content as lists.
Use numbered lists when sequential order is important, otherwise use bulleted lists for unordered content. See the example below:
Unordered list:
Ordered list:
Note: Avoid manually creating a list using the tab key. Screen readers will not be able to recognize this content as a list.
Source: Microsoft Word: Creating Accessible Documents by WebAIM.