In current surgery tendency of «fast-track» surgery is growing in strength. With respect to obstructing colorectal cancer this tendency is based on laser recanalisation of the tumor as the first stage of treatment followed by radical surgery and restoration of intestinal continuity within single hospitalization. Laser recanalisation and subsequent stenting may be complicated both by perforation and sequelae of underlying disease. Cases given in the article may benefit in avoiding complications in the treatment of patients with obstructing colorectal cancer. Suggested approach with the use of laser recanalisation allows excluding intermediate stages of treatment, significantly reducing hospital stay and patients rehabilitation, achieving good quality of life in the short-term and long-term period. In practical healthcare this tendency is only beginning to grow in strength reflecting advantages and perspectives of its application that enables to significantly improve quantitative and qualitative parameters of treatment for complicated colorectal cancer.