Psyllium, a soluble fiber derived from the husks of Plantago ovata seeds, is scientifically supported for use in managing hemorrhoids, primarily through its stool-bulking and softening effects. Hemorrhoids are often exacerbated by straining during bowel movements and constipation. Psyllium increases stool bulk and water content, making stools softer and easier to pass, thus reducing the need for straining and minimizing trauma to hemorrhoidal tissue.

Multiple randomized controlled trials and systematic reviews have demonstrated the efficacy of fiber supplementation, including psyllium, in improving symptoms of hemorrhoids and reducing the risk of bleeding. For instance, a meta-analysis published in the American Journal of Gastroenterology (2006) concluded that fiber supplementation reduces the risk of persisting symptoms and bleeding in people with symptomatic hemorrhoids. Clinical guidelines from reputable organizations such as the American Society of Colon and Rectal Surgeons (ASCRS) and the National Institute for Health and Care Excellence (NICE) recommend fiber supplementation—including psyllium—as a first-line conservative therapy for hemorrhoids.

In summary, the use of psyllium for hemorrhoids is not only rooted in a strong physiological rationale but is also supported by moderate to high-quality clinical evidence and is recommended by clinical practice guidelines.