The aim of this prospective randomized study is to describe the effects of laxative plantago ovata after open hemorrhoidectomy (Milligan-Morgan). Sixty patients divided into 2 equal groups were included in this study. The first group was treated postoperatively with 2 sachets of bulk agent Laxomucil (3.26 g plantago ovata), twice daily, for a period of twenty days, while the control group was treated with glycerin oil. The p.ovata group patients had a statistically significant shorter postoperative length of hospital stay (2.9 v.s. 4.1 days). Pain after stool was statistically significant more tolerable in the p.ovata group. In conclusion, the application of bulk agent plantago ovata after hemorrhoidectomy shortens the mean postoperative hospital stay, expedites digestive function recovery and lessens the pain after stool.