Long-term fecal incontinence after lateral internal sphincterotomy for anal fissure.

<b>Introduction:</b> Anal fissure is a common benign anal condition. The gold standard treatment is lateral internal sphincterotomy (LIS), and this procedure carries a risk of incontinence. </br></br> <b> Aim:</b> The aim of this study is to determine the long-term risk of fecal incontinence after LIS.