The hemorrhoids are always farting after surgery, and this is closely related to the stimulation of the rectum and anal canal after hemorrhoids surgery, as follows: 1. Pre-operative: Hemorrhoids surgery before surgery to clean enemas or oral laxatives, which will stimulate the rectum and anal canal, causing temporary dysfunction of the rectum and anal canal. 2. Intra-operative: Hemorrhoids surgery intra-operative operation will also stimulate the lower rectum and anal canal, which will also cause dysfunction of the rectum and anal canal. 3. Post-operative: Hemorrhoids require daily medication changes after surgery, and many patients don’t eat very regularly at first, which is one of the main factors that stimulate the rectum, especially the lower rectum as well as the anal canal. So there are factors that stimulate the rectum and anal canal before, during and after hemorrhoid surgery, leading to a temporary disruption of the function of the rectum and anal canal, resulting in patients always farting after surgery. In this case, you should eat regularly and you can just supplement the intestinal probiotics appropriately to minimize the stimulation of the anus.