Internal imagery technique, one of the imagery techniques, will be applied to the participants.

Exercise program 8 weeks, 3 days a week, 3 sets of 10 repetitions of each movement and between sets It is planned to rest for 10 seconds.

One of the relaxation methods, Progressive Relaxation Exercises will be used.Exercises will be required to be applied 3 days a week, as 1 set of 10 repetitions per day.

With the video home exercise program, the participants performed progressive relaxation exercises, respectively. then they will be provided with motor imagery focused pelvic floor exercises. A rest period of 5 minutes will be applied between two different exercise programs.

Exercises to be done in order:

1. Pelvic tilt in supine position
2. Bridge building
3. Pelvic stretching
4. Ball spin
5. Cat-camel exercise

Exercise program 8 weeks, 3 days a week, 3 sets of 10 repetitions of each movement and between sets It is planned to rest for 10 seconds

The VAS was used on the most severe day of the menstrual cycle to determine the severity of pain, which is one of the inclusion criteria of the participants before starting the study. Subjects were asked to mark the degree of pain they felt on a straight line of 100 millimeters (mm). A 0 at the beginning means no pain and a maximum of 10 at the end of the line means unbearable pain. The point determined on the line expresses the intensity of pain that people feel during menstruation.

It is a questionnaire used to describe the severity and quality of the pain that a person feels during menstruation. A high score indicates a high level of pain. The questionnaire consists of three parts. In the first part, there are 15 descriptive word groups, 11 of which are to evaluate the emotional/perceptual dimension of pain and 4 to evaluate the emotional/emotional dimension of pain. Words are rated from 0 to 3 (0= None at all, 1= Mild, 2=Moderate, 3= Severe). In the first part, three pain scores are obtained: sensory pain score, perceptual pain score and total pain score. Pain quality scores are obtained with sensory/perceptual 0-33 points, emotional/emotional 0-12 points, and a total of 0-45 points. The second part is the display of the pain intensity of his work on a scale. A low value indicates a low level of pain, and a high value indicates severe. The third section has five word groups ranging from 'mild pain' to 'unbearable pain' to describe one's pain.

It is used to evaluate the positive / negative aspects of menstruation. The scale is a Likert-type scale consisting of 33 items and five subscales. The subscales and the items of the subscales are as follows:

• Menstruation as a debilitating phenomenon (12 items),
• Menstruation as a disturbing phenomenon (6 items),
• Menstruation as a natural phenomenon (5 items),
• Noticing/anticipating that menstruation will occur (5 items),
• Denial of the effects of menstruation (7 items) The scale is evaluated by scoring between 1 and 7, and the Turkish form has been converted into scoring between 1 and 5. Participants are asked to mark the most appropriate option (1. Strongly disagree, 2. Disagree, 3. Undecided, 4. Agree, 5. Totally agree).