High portal vein strain. The risk of bleeding increases as being the force during the portal vein boosts. Deep vein thrombosis increases the risk of a blood clot in the lungs, identified as a pulmonary embolism. It can be an exceptionally uncommon complication of sclerotherapy that requires fast medical care. https://www.sgvascularctr.com/varicose-vein-treatment-in-singapore-answers-to-your-most-common-questions/