The global occlusion devices market size expected to reach USD 4.8 billion by 2027, at a CAGR 5.6% during the forecast period 2021 to 2027. Occlusion systems are the closure devices used in embolization procedure which are performed to prevent the blood flow to any part of body, which can effectively shrink a tumor or block aneurysm. Occlusion systems are especially used in the procedure of embolization. These are the closure devices performed for the prevention of the blood flow to body part, which may shrink a tumor effectively. Increase in healthcare expenses in developing economies and approving reimbursement policies in developed countries for diagnosing and treating the cancer are anticipated to foster the global occlusion systems market during the forecast years. In addition, growing demand for the cancer treatment techniques due to the growing population is also projected to boost the market share.