1. Patients are informed about the study 24 hours before surgery.
2. The patient is given a "patient information form" and "The State-Trait Anxiety Inventory".
3. The stoma simulation is started.
4. The stoma simulation is ended on the morning of the surgery and the patient's state anxiety is measured.
5. During the discharge, the patient's adaptation to the stoma is evaluated using the Ostomy Adjustment Inventory.
6. 1 months after surgery, the patient's adaptation to the stoma is evaluated again using the Ostomy Adjustment Inventory.

1. Patients are informed about the study 24 hours before the surgery.
2. The patient is given a "patient information form" and "The State-Trait Anxiety Inventory".
3. The patient's state anxiety is measured on the morning of the surgery.
4. During the discharge, the patient's adaptation to the stoma is evaluated using the Ostomy Adjustment Inventory.
5. 3 months after the surgery, the patient's adaptation to the stoma is evaluated again using the Ostomy Adjustment Inventory.

Patients who will undergo stoma surgery will have an intervention one day before the surgery. The adapter will be cut to an estimated stoma size, heated by rubbing with hands and adapted to the skin by applying stoma paste. The patient will be asked to place their hand on the adapter and apply pressure. Then, the stoma bag filled with tissues and water and the adapter will be combined. The patient will be informed that they should not hesitate to do any activity that they will spend 24 hours with the stoma bag. The patient will be provided with the opportunity to go to the toilet, eat, sleep and experience all their daily activities with the stoma. It allows patients to experience the stoma bag by putting it on 24 hours before the surgery. In this way, patients know that they will not encounter any surprises after the surgery.

The State-Trait Anxiety Inventory consists of two separate dimensions: state anxiety (STAI-I) and trait anxiety (STAI-II), and these dimensions aim to measure individuals' anxiety states in different contexts. The scale consists of 40 items in total; 20 items measure state anxiety and the other 20 items measure trait anxiety. Both scales are scored between 20-80, and as the score increases, the level of anxiety increases. The State-Trait Anxiety Inventory is administered 24 hours before surgery. The patient's state anxiety is measured 30 minutes before surgery.

The patient's adaptation to the stoma is assessed with the Ostomy Adjustment Inventory. The scale consists of 23 items and four sub-dimensions. The sub-dimensions are acceptance, anger, anxiety/worry, and social adaptation. The lowest score on the scale is 0, and the highest is 92. A high score on the scale indicates that the individual's adaptation to the stoma is high.