Association of Intestinal Microbiota and the Onset of Perianal Abscess Based on 16S RDNA Amplicon Sequencing

Inclusion Criteria: * Observation group: ① Age between 18-60 years, local resident of Xi'an; ② met the diagnostic criteria for perianal abscess and underwent surgical treatment in our hospital; ③ did not use antibiotics before treatment; ④ himself and his family members were willing to participate in this study and signed informed consent. Control group: ① Age between 18-60 years, permanent residents in Xi'an; ② had no serious chronic disease, no abnormality in physical examination in the last 1 week; ③ did not use drugs that may affect intestinal flora in the last one month; ④ himself and his family members are willing to participate in the study and sign the informed consent. Exclusion Criteria: * Failing to retain the specimens as required