Change These 5 Pooping Habits To Prevent Hemorrhoids, Says An MD
Her hypothesis is that the issue isn't the phone itself, it's the prolonged sitting. Modern toilets offer no pelvic floor support, so every minute you spend sitting on one, your tissue is under passive pressure. Do that once in a while and it's probably fine. Do it every day, multiple times a day, for years, and that cumulative pressure adds up.