In the medical sector, high-density interconnect PCBs enhance signal integrity, essential for advanced imaging technologies such as MRI and CT scanners, enabling clearer imaging results and faster diagnostic capabilities. Flexible and rigid-flex PCB designs are crucial for wearable health monitors’ compact, ergonomic designs, enhancing patient comfort and device reliability over long-term use. These PCBs’ reliability and advanced technology make them indispensable in supporting the ongoing innovation in medical diagnostics and patient treatment solutions, aligning with industry trends towards more personalised and accessible healthcare.