The investigators will conduct a validity and reliability study of the Wexner Constipation Questionnaire, used for constipation, in Turkish. For this purpose, investigators will administer the Wexner Questionnaire, translated from English to Turkish, and the accompanying Constipation Quality of Life Scale to 200 participants. Investigators will repeat the Wexner questionnaire for some participants after two weeks.

To assess the cultural adaptation, validity, and reliability of the eight-question Wexner Constipation Questionnaire, the questionnaire was first translated from English to Turkish, then back from Turkish to English, and finally back from English to Turkish. The questionnaire was finalized with the collaboration of an internal medicine specialist and a gastroenterologist to prepare the Turkish version. It will then be administered to a minimum of 200 participants, along with the Constipation Quality of Life Questionnaire, previously validated and reliable in Turkish and used for constipation. For reliability, the questionnaire will be repeated for a portion of the participants after two weeks.

Inclusion Criteria:

1. Being over 18 years of age
2. Being diagnosed with functional constipation according to Rome IV criteria
3. Having undergone an anorectal examination by a gastroenterologist
4. Having no history of neurodegenerative disease (e.g., multiple sclerosis, spinal cord injury, or stroke)
5. Having no history of metabolic disorders (e.g., diabetes, hypothyroidism, or hypercalcemia)
6. Having no history of opioid-induced constipation
7. Having no history of irritable bowel syndrome
8. Having no history of congenital anorectal abnormality
9. Having no history of colon cancer or pregnancy
10. Having the ability to read and write Turkish.

Exclusion Criteria:

1. Not wanting to continue the study.
2. Having any complaints, such as anorectal bleeding, during the test-retest interval.

Men and women with chronic constipation