Plastic injection molding and microfluidics are driving a medical revolution. Precision molding produces intricate plastic parts, elevating medical device versatility and material selection. Meanwhile, microfluidics manipulates minuscule fluids, enabling rapid point-of-care diagnostics and lab-on-a-chip innovations. The synergy of both technologies enhances microfluidic device production, redefining diagnostic capabilities and paving the way for personalized medicine. From infectious disease detection to cancer biomarker profiling, these advancements empower healthcare professionals with compact, portable diagnostic tools. As plastic injection molding and microfluidics continue to evolve, a promising future awaits, revolutionizing medical diagnostics and saving lives.