Writers and researchers usually the one who tend to do self-plagiarism the most. They think of their content to be their personal belonging. They must minimize the reuse of their contents at various places. It’s about same person writing or researching about the same topic, there is more probability that same words, sentences and findings might be mentioned. There are many ways to avoid self-plagiarism. It’s difficult to check all the previous work and find out if any work is being repeated.
To find out some or much of your work has already been published, you can highlight those parts and either replace them with updated information in order to avoid self-plagiarism. Some time we are not aware of the fact that same information has already been posted anywhere before. It is Beneficial when there is no other option.You have an option of checking work through a plagiarism-checking tool.