Below are the main rubriks (i.e strongest indications or symptoms) of Bryonia in traditional homeopathic usage, not reviewed by the FDA.
RECTUM, ANUS, STOOL
Alternation of diarrhoea and constipation.
Obstinate conspiration; stools very dry, large and hard; only after much straining.
Hard, black and dry stool, as if burnt, and rather scanty.≡ more ...