Inclusion Criteria:  Vaginal delivery between 38-42 weeks of pregnancy First delivery Agreement to participate Good command of spoken and written Polish  Exclusion Criteria:  Contraindications for the examination of the pelvic floor muscles (postpartum hematoma of the perineum, extensive perineal swelling, perineal wound dehiscence, bladder catheterization). Lack of consent to participate in the study Lack of good command of spoken and written Polish