Yang Jenn-Ming, Huang Wen-Chen
Department of Obstetrics and Gynecology, Puli Christian Hospital, Puli Township, Nantou County, Taiwan.
Department of Obstetrics and Gynecology, Cathay General Hospital, Taipei, Taiwan.
J Med Ultrasound. 2025 May 23;33(2):102-107. doi: 10.4103/jmu.JMU-D-25-00012. eCollection 2025 Apr-Jun.
Pelvic floor hiatus (PFH) is the pelvic floor passage through which the pelvic organs pass. Proper PFH closure is essential to maintaining normal pelvic organ support. PFH can be explored with urogenital hiatus or levator hiatus, according to different anatomical definitions. Factors affecting PFH include age, ethnicity, body mass index, levator ani muscle integrity, resting tone, and contraction force of pelvic floor muscle. The ineffectiveness of PFH to stay adequately closed is not only associated with pelvic floor disorders including pelvic organ prolapse (POP) but also accountable for recurrent POP after pelvic floor repairs. Advancing our comprehension of the mechanism of an enlarged PFH and how PFH enlargement affects pelvic floor support would promote better prevention strategies and improved treatments.
盆底裂孔（PFH）是盆腔器官通过的盆底通道。适当关闭PFH对于维持正常的盆腔器官支撑至关重要。根据不同的解剖学定义，PFH可通过泌尿生殖裂孔或提肌裂孔来探究。影响PFH的因素包括年龄、种族、体重指数、肛提肌完整性、静息张力以及盆底肌肉的收缩力。PFH不能充分关闭不仅与包括盆腔器官脱垂（POP）在内的盆底疾病有关，也是盆底修复后POP复发的原因。加深我们对PFH扩大机制以及PFH扩大如何影响盆底支撑的理解，将有助于制定更好的预防策略并改进治疗方法。
