功能性肛门直肠痛(functional anorectal pain, FAP)是一种以肛门直肠部疼痛为主诉的功能性疾病。Rao等介绍根据疼痛的持续时间及指诊是否有压痛,此症可分为三类:肛提肌综合征(levator ani syndrome, LAS)、非特异性肛门痛(unspecified functional anorectal pain)和痉挛...