Keyword cannibalization happens when you have two or more pages ranking for the same keyword. It is generally considered undesirable.
This article will help you decide whether you have a keyword cannibalization problem and, if so, how to solve it.
Is keyword cannibalization always problematic?
Before fixing keyword cannibalization, check whether it is a real problem for your site.
Sometimes, two pieces of content ranking can be favorable, especially with an indented SERPs