First of all, what is backstory?
The backstory is anything and everything that happened before your short story or novel. Some authors and writers think the reader needs to know what happened before the story starts.
Backstory might show another layer to the protagonist but too much hopping back and forth to explain origins can become tiresome. Readers want action, they want forward movement. Decide how little backstory you can get away with and make sure you include only important background information.
Below are five ways to avoid backstory dumps and threading it through the story to keep readers turning pages.