Inclusion Criteria:  Being a nulliparous woman between the ages of 18-35, Having a primary dysmenorrhea symptom, Having a regular menstrual cycle (28 ± 7 days), Menstrual pain Visual Analogue Scale score higher than 4 cm in the last 6 months  Exclusion Criteria:  Having gastrointestinal, urogynecological, autoimmune, psychiatric, neurological diseases or other chronic pain syndromes, To have given birth, Current pregnancy status, Using an intrauterine device and having had pelvic surgery, Using drugs including oral contraceptives or antidepressants at least 6 months before the study, Having an irregular menstrual cycle (those with a menstrual cycle shorter than 21 days or longer than 35 days) A pathological history or ultrasonographic result showing secondary dysmenorrhea.