Tore stitch TMI

I got stitches after giving birth about 3 weeks ago I noticed a stitch close to me butthole itched a little but thought it was because it was healing anyways i had to poop just now and saw a piece of thread in the toilet. And when I wiped I was bleeding. I did have to actually push a little to poop not really strain. I think I popped the stitch 🤷🏽‍♀️ it doesn’t or didn’t hurt or anything