Timely fibre optic cable replacement is essential to avoid service interruptions and keep pace with growing bandwidth demands. Key indicators of cable aging include rising optical loss, degraded signal quality, and increasing link instability. This article will explore the three core stages: fiber optic cable selection and installation, usage and maintenance, and aging assessment and replacement. Fiber optic cables have a reputation for their prolonged lifespan, low maintenance need, and dependable quality. From FTTH optics to industrial applications, backbone transmission, and cloud data centers, fiber cables can last for decades under appropriate installation and handling. Proper lifecycle management ensures reliability, cost-effectiveness, and minimal environmental impact (2).