Abdominal wall defects following oncologic resections present significant challenges and require careful planning and execution to restore both structural integrity and function. Defects that arise from aggressive tumor excisions that necessitate the removal of large portions of skin, muscle, and fascia. Various flap reconstruction techniques: Ramirez component separation and Rives-Stoppa repair employ mesh prosthetics for tension-free and secure closures. We synthesized findings from multiple studies to evaluate the efficacy, safety, and outcomes of these techniques. After all research, we can indicate that while local, regional, and free flaps each offer unique benefits successful reconstruction depends on a personalized approach that considers defect size, location, and patient-specific factors. Short-term outcomes show complication rates ranging from 17.4% to 39% with common issues including infections, hernia recurrence, and wound healing problems. Long-term outcomes highlight the importance of functional and aesthetic restoration, with recurrence rates for hernias and other complications varying widely depending on the technique used. Long-term outcomes of flap reconstruction techniques in abdominal wall defects following oncologic resections show a complication rate of 25% for various flap techniques.