Inclusion Criteria:  Patient whose age is ≥ 18 years Patients treated at the Centre de proctologie of the Centre de santé Marie-Thérèse or the GHPSJ (consultation and/or hospitalization) and for whom an anorectal swab will be taken for suspected infectious sexually transmitted ano-rectitis French-speaking patient  Exclusion Criteria:  Patient under guardianship or curatorship Patient deprived of liberty Patient under court protection Patient objecting to the use of his data for this research