Colonoscopy is an endoscopic procedure for diagnosing colon diseases. Patients should be prepared 2-5 days in advance for this procedure and intestinal cleansing should be provided. This is a difficult process and does not admit mistakes. The adequacy of the patient's pre-preparation for this process increases the chances of success. For preliminary preparation, it is recommended to train the patient and reinforce the trainings by phone. Education given to the patient; It contributes positively to patient outcomes, the workload of healthcare personnel in the institution, and costs. Therefore, this study has been planned.

Colonoscopy is an endoscopic procedure for the diagnosis of colon diseases. For this procedure, patients should be prepared 2-5 days in advance and intestinal cleansing should be provided. Because the adequacy of bowel cleansing provides more accurate results than colonoscopy. Pre-colonoscopy preparation process for the patient; It is very tiring and challenging for reasons such as dieting, taking too much fluid and needing to defecate constantly. After this difficult preparation period, the failure to obtain sufficient imaging from the colonoscopy necessitates going back to the beginning. But patient; If he is informed about the importance of this preparation, how it should be done, medication and fluid intake, diet, and if he is guided, the chances of success in colonoscopy will increase. For this reason, nursing education to be given to the patients before colonoscopy and the guidance of the nurse will reduce the possibility of experiencing these negativities.For this reason, this study was planned as a randomized control in order to obtain results with high evidence value. Both a printed education booklet and a digital booklet will be used and guidance will be provided by phone. As a result of this study; Before the colonoscopy procedure, a material to be used in patient education will be prepared and a printed and digital educational booklet will be provided to Necmettin Erbakan University. With the completion of the colonoscopy procedure in one go: the drugs to be used will not be prescribed repeatedly, no extra medication will be used, the patient will not be given multiple colonoscopy appointments and the procedure will not be repeated. In this way, the workload of physicians and nurses will not increase and the comfort of the patient will not be adversely affected. All of these will provide cost effective results and positive patient outcomes. Publication of the article will contribute to the literature.For this purpose, power analysis was performed, sample size was determined, and a randomization list was created for the participants. It has been planned in accordance with CONSORT. There will be 40 people in the experimental and control groups. The effect size of the study; 0.83, margin of error; 0.05 & power; It is 95%.

Inclusion Criteria:

Being between the ages of 18-65

• Being open to communication and cooperation
• Being conscious and in a position to answer questions
• Volunteering to research

Exclusion Criteria:

Having a disease that may affect decision making ability (dementia, psychological disorders etc.)

• Having sensory losses such as vision and hearing Colonoscopy decision has been made because of emergency and active lower gastro intestinal system bleeding.
• Being inpatient at the hospital
• Being pregnant

It will be decided upon completion of the study.

NO MASKING