Early detection of diabetes is essential for preventing complications and improving long-term outcomes. Updated diabetes screening guidelines emphasize regular testing for individuals with risk factors such as obesity, hypertension, family history, or gestational diabetes. Recommended methods include fasting plasma glucose, oral glucose tolerance tests, and HbA1c measurements. Public health initiatives now advocate for earlier and more frequent screening in high-risk groups, including certain ethnic populations and older adults. Integrating screening programs into primary healthcare systems enhances accessibility and awareness. Consistent application of these guidelines supports timely diagnosis, lifestyle modification, and effective disease management across global populations.