The metabolic disease known as diabetes mellitus often has long-term effects that gradually harm several organ systems. Neuropathy, retinopathy, nephropathy, and vascular dysfunction are diabetic impairments that may begin to develop before the onset of any clinical symptoms. Patients face a significant risk from this “silent damage” since early warning signs are often unrecognized, which may result in irreversible effects and a worse quality of life. The purpose of this chapter is to highlight the significance of detecting subtle deficiencies in sensory function, vision, ankle reflexes, microalbuminuria, and intermittent claudication as early warning symptoms of diabetes. To detect issues early and halt or postpone the progression of damage, routine testing such as nerve conduction studies, retinal exams, and renal function tests may be beneficial. Encouraging people to monitor their symptoms and report them early also requires training them how to do so and collaborating with other medical providers. Globally, and especially in middle- and low-income nations, the number of diabetics is on the rise. As a result, we need to shift our focus from reactive treatment to proactive detection and prevention of diabetes. To halt the gradual but constant development of diabetic complications, it is crucial to be aware of, consistently assess, and use integrated healthcare strategies. Lower impairment, better patient outcomes, and fewer long-term socioeconomic repercussions of diabetes-related disabilities may result from recognizing and addressing early signs.