Wound closure techniques are chosen to accelerate the wound healing process, reduce the risk of infection and improve aesthetic outcomes. Primary, secondary and delayed primary closure techniques are used in different clinical scenarios. Primary closure is performed by direct approximation of the wound edges, while secondary closure promotes the natural healing process by allowing the formation of granulation tissue. Delayed primary closure is a method in which wound closure is delayed for a certain period of time. The choice of wound closure techniques in open fractures is of great importance in terms of reducing the risk of infection, preserving tissue integrity and ensuring functional healing. In conclusion, each closure technique should be carefully selected and applied according to the patient and injury characteristics.