Ambulatory surgeryโalso called same-day or outpatient surgeryโencompasses procedures that do not require an overnight hospital stay, making it a cornerstone of cost-efficient, patient-centric care. With global payers and providers under pressure to cut surgical spend while improving access, the Ambulatory Surgery market size is projected to reach USD 7.4 billion in 2025, up from an estimated USD 6.1 billion in 2023, reflecting a robust growth outlook underpinned by a forecast CAGR of 6.2% through 2033. This market forecast is fueled by three converging forces: (1) rapid uptake of minimally invasive technologies that shift complex cases to ASCs, (2) CMS and private-payer reimbursement parity that accelerates industry expansion, and (3) post-pandemic consumer preference for lower-acuity settings away from hospital campuses. North America retains the largest revenue shareโover 43% in 2025โwhile Asia-Pacific emerges as the fastest-growing region, propelled by green-field ASC investments and medical-tourism-friendly regulation across India, Thailand, and Vietnam.