Answer:
Utilization of inappropriate knot
Tying knots too loosely
Employment of improper suture material
Selection of the incorrect needle
Selection of the incorrect needle
Over-tightening of sutures
Placement of sutures in an infected wound
Misplacement of sutures
Adoption of incorrect suture technique
Removal of sutures too soon or too late
The existence of foreign object in the wound
Formation of a large blood clot (hematoma)
Presence of arterial bleeds
Insertion of sutures in a malignant tumor