Check if the blank page is caused by extra paragraph marks:
Click the blank page area
Press Ctrl + Shift + 8 (shows/hides formatting marks)
Delete any extra paragraph mark(s) on the blank page
If it’s a section break:
Click the blank page area
Enable formatting marks (Ctrl + Shift + 8)
Delete an extra “Next Page” or “Section Break” on the blank page
If it’s caused by a page break:
Enable formatting marks (Ctrl + Shift + 8)
Delete the “Page Break” on the blank page
If it’s caused by a table or object pushing content:
Click the content near the end of the previous page
Move the table/object slightly upward, or resize it
Delete the object if it’s not needed
If it’s caused by a header/footer with different settings:
Double-click the header or footer on the blank page
In Header & Footer Tools, check “Different First Page” and “Different Odd & Even Pages”
Remove the extra header/footer content on the blank page section
If it’s caused by “Keep with next”/“Keep lines together”:
Select the paragraph before the blank page
Home → Paragraph → (dialog launcher)
Line and Page Breaks tab
Uncheck “Keep with next” and/or “Keep lines together” if enabled
If it’s caused by page layout settings:
Go to Layout (or Page Layout)
Check Margins and Paper size
Ensure the blank page isn’t created by mismatched settings in a specific section
If it’s a trailing blank paragraph at the end of the document:
Scroll to the very end
Click just before the blank page
Press Backspace until the blank page disappears
If content is in the wrong section:
Enable formatting marks (Ctrl + Shift + 8)
Locate section breaks around the blank page
Adjust the content or remove the unnecessary section break