Diosmin is a venous tone enhancing drug and vasoprotective agent, mainly to improve local blood circulation, promote lymphatic return and reduce local edema. In clinical practice, it is mainly indicated for some symptoms related to venous or lymphatic insufficiency, such as venous edema, soft tissue swelling, local tissue soreness and discomfort, as well as deep phlebitis and deep vein thrombosis. It can also be used to treat acute attacks of hemorrhoids, such as anal dampness, perianal itching, bleeding during stool and anal pain. Patients with acute flare-ups of internal, external or mixed hemorrhoids.