Stapled Haemorrhoidopexy β also called MIPH (Minimally Invasive Procedure for Haemorrhoids) or PPH (Procedure for Prolapse and Haemorrhoids) β is a modern surgical technique for Grade 3 and 4 haemorrhoids. Using a circular stapling device inserted through the anus, a ring of prolapsed haemorrhoidal tissue is removed and the remaining tissue is stapled back into its anatomically correct position inside the anal canal.