Stage 3 represents the third and final stage of bowel movements caused by IBS or Irritable Bowel Syndrome, which is commonly caused by stress. This stage usually occurs after the stressful action has been completed. Stage 3 often consists of sharpened stool, hardened poop often caused by excess constipation. This is probably the most painful yet most relieving part of the 3 Step process.
Stage 3 makes me feel like I'm pooping razor blades.