[Nonsurgical therapy of hemorrhoids].

Hemorrhoids are a clinical and anatomical subject that has not been completely investigated. A link between the anatomy and the symptoms has still not been established. For this reason, it is difficult to class the different treatments. Non-surgical treatment is intended not to remove but to reposition and hold the hemorrhoids in an anatomically correct position and the reduce the vascularity. Different techniques have been studies but not all of them have been approved. For the moment, the recognised techniques include: infrared therapy, sclerotherapy, rubber band ligation. Cryotherapy has not been studied in controlled studies. One hopes that new techniques such as Doppler-guided artery ligation will soon be tested and validated.