I have a basic question. I have seen videos of wound treatment, where the doctor induces bleeding around the edge of the wound... to create granulation tissue... then suturing the wound.
My question is... what if an open wound dries up... will it eventually close on its own without inducing bleeding at the edges? or is this a necessary part of reattaching skin together.
I have the same question with regards to muscle, fat... if there's a situation where fat or muscle has torn and needs to be sutured together... does bleeding always need to be induced at the tear to promote reattachment. Or can reattachment happen if the tissues are just sutured together?
EDIT: Here's a video. Warning it is graphic:
He talks about roughing up the tissue before suturing. So my question is... what happens if you suture without doing this first... will the skin still eventually close up?
What about an extreme case where the wound has been dry for months... now you suture without doing anything else first... will the skin still fuse together eventually?