Change by aging, which varies among individuals, influences physical and mental condi- tion, and social activity. Especially, illness accelerates the decreases of them in old adults. Surgical treatment for elderly patients might put a burden on their conditions and decrease activity of daily living if patients had adverse event and prolonged hospitalization. Because inadequate treatment is also associated with decreasing quality of life, it is necessary to pro- vide the adequate and effective treatment adapted to them. In this session, treatment for benign prostatic hyperplasia and robot-assisted surgery for cancer are described for instances of benefit and controversies points of minimum invasive surgery for elderly patients.