The new classification of hemorrhoids: PATE 2000-Sorrento. History of the scientific debate.

Background: The history of our proposal for a new classification of hemorrhoids is very old: 7 years of scientific debate had a big impact for the study and the definition of hemorrhoids.
Methods: Nowadays many things have changed mainly in the field of treatment of hemorrhoids. New medical and surgical tools are available for the modern proctologist.
Results: The new classification of the disease seems to fit the necessity of introducing these modern opportunities. Many authors recognize the fundamental role and claim for the routine use of a new classification, named PATE 2000 Sorrento. Nevertheless many problems are on debate. Their resolution needs the cooperation of all the experts in order to choose the best version of the classification.
Conclusions: For these reasons the authors analyse all the work carried out till now in order to see what we still need to introduce a new classification of the disease.