Application segmentation drives the bulk of the Venous Access Port market, accounting for distinct clinical pathways that dictate device selection, procurement volume, and pricing dynamics. In oncology, ports facilitate continuous chemotherapy infusion, representing roughly 45 % of total sales due to high treatment cycles and long‑term catheter reliance. The chronic kidney disease segment, primarily supporting hemodialysis access, contributes about 30 % as renal replacement therapy expands globally. Parenteral nutrition and long‑term antibiotic therapy together form the remaining 25 % under an "Other" category, reflecting diversified use in intensive care and post‑surgical settings. These application‑based slices collectively shape the market’s revenue curve, with each proportion directly linked to procedure frequency, reimbursement policies, and regional disease prevalence. Understanding this Venous Access Port segmentation is essential for forecasting demand, allocating R&D resources, and tailoring commercial strategies to the therapeutic contexts that generate the greatest volume.