The nurse has an important role in screening path of colorectal cancer. It represents a point of reference for many patients who seek advice correct and accurate to solve many doubts and concerns that inevitably arise after receiving a letter of invitation to the prevention program. The nurse is involved in the emotional support at time of diagnosis of positivity of the fecal immunochemical test, in the information and support through treatment decision making, in the preparation for colonoscopy, and, finally, in the ongoing assessment and care during and after colonoscopy.