The Safety Device for Prefilled Syringes segmentation by application delineates five primary usage domains: vaccination, hormone therapy, oncology, cardiovascular treatment, and other therapeutic areas. Vaccination accounts for roughly 40 % of market volume, driven by large‑scale immunization programs and the need for rapid, safe administration in public health settings. Hormone therapy, representing about 20 % of the market, leverages safety devices to mitigate needle‑stick risks in chronic endocrine treatments, especially in outpatient clinics. Oncology consumes an estimated 18 % of the market; high‑risk cytotoxic agents necessitate robust passive and active safety mechanisms to protect healthcare workers. Cardiovascular applications, comprising 12 %, involve anticoagulants and biologics where precise dosing and needle safety are critical. The residual 10 % falls under “other,” encompassing niche indications such as ophthalmology and veterinary medicine. Each application segment contributes proportionally to overall market size, reflecting the interplay of disease prevalence, injection frequency, and regulatory pressure for enhanced needle safety.