English summary: COMPLICATIONS OF GYNAECOLOGICAL LAPAROSCOPY Laparoscopy has gained global popularity in the last twenty years and replaced many traditional laparotomies. It offers many advantages over laparotomy, including shorter hospital stay and recovery period. Like all surgery, laparoscopy involves a risk of complications. The overall risk of major complications during gynaecological laparoscopy is 0.3% but during advanced laparoscopy 1-2%. Almost half of the complications are associated with laparoscopic entry and the other half with the procedure itself. In 1990-1996, 57% of all laparoscopic complications in Finland occurred during laparoscopic hysterectomies. Urinary tract injuries were the most serious and common complications at the learning phase. However, major complications and urinary tract injuries have decreased with experience and training from 4.9% in 1993 to 0.6% in 2003 and from 1.9% in 1993 to 0.5% in 2003, respectively.