Ferguson E F, Houston C H
Surg Gynecol Obstet. 1979 Oct;149(4):506-8.
Forty-three postoperative anorectal bleeding episodes were encountered in the treatment of 4,059 anorectal operations, an incidence of 1.06 per cent. One-third of the postoperative bleeding occurred within the first 48 hours and reflects technical errors; nearly half of the bleeding occurred from the seventh to the 11th postoperative days; the cause of this delayed bleeding remains obscure.
在4059例肛肠手术治疗中，共发生43例术后肛肠出血事件，发生率为1.06%。三分之一的术后出血发生在术后48小时内，这反映了技术失误；近一半的出血发生在术后第7至11天；这种延迟出血的原因仍不清楚。
