7 year old pooping her underwear

My 7 year old daughter has been pooping her pants for probably a month now. I don’t understand why this is happening or what to do. It’s literally everyday. Normal bowel movements. There’s no physical reason I can see for this to be happening. Looking for suggestions.

Edit:

She has not endured any sort of trauma or abuse. She goes to school and I pick her up and bring her home and that’s about it. Her home life is very safe she’s never even been spanked. I have come to the realization that it did start or at least highly increase since school started back up so I’m thinking it could be that she’s holding it all day there and now it’s become a habit on the weekends also. I’ll be calling the doctor Monday.