“Healing can only occur properly if the two severed areas of tissue meet properly and remain intact. If dead space is not properly eliminated blood may pool in the wound leading to hematoma and consequently wound strength will be compromised, and thus the risk of infection will be increased.
The secondary goal of suturing is minimizing scar tissue formation. Both proper healing and minimal scarring are achieved by accomplishing two main objectives”
I really had no idea there were so many suturing methods. Apparently, it’s mostly a matter of preference which technique you use, but some stitches are less likely to leave a scar than others. Read the link below for more extensive background and specifics on how to really suture a wound properly if ever you need to