cause for hardening stool not related to diet
Here's a guide to some of the most likely â and most lethal â conditions that can lead to changes in the shape, size, smell and shade of your stool. Insufficient fiber in the diet, diverticulosis, bowel spasm or excessive straining are common causes of a change in stool shape.
The hard and dry stools of constipation occur when the colon absorbs too much water or if the colon's muscle contractions are slow or sluggish, causing the stool to move through the colon too slowly. Common causes of constipation are: Not enough liquids. Lack of exercise.