Increasing costs in health system, reduction of bed capacities and lack of nurses force to search for solution. To prove that day surgery may be a kind of solution, a pilot project was analysed during 8 months. This project was fully integrated in normal clinical management. Operated patients (n = 100; hernias, varicosis, proctological and other indications), preoperatively selected by specific criterias, and the family doctors were questioned retrospectively of their experiences. The results were very encouraging. Moreover we stated that day surgery is cost-covering. So day surgery is to consider as an important factor to cost-reduction.