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Table 2 Bristol Stool Form Scale

From: Constipation in chronic kidney disease: it is time to reconsider

Type Stool form
1 Separate hard lumps, like nuts (hard to pass)
2 Sausage-shaped but lumpy
3 Like a sausage but with cracks on the surface
4 Like a sausage or snake, smooth and soft
5 Soft blobs with clear-cut edges
6 Fluffy pieces with ragged edges, a mushy stool
7 Watery, no solid pieces, entirely liquid