Below are the main rubriks (i.e strongest indications or symptoms) of Causticum in traditional homeopathic usage, not reviewed by the FDA.
RECTUM, ANUS, STOOL
Soft and small, size of goose-quill ( Phosphorus Phos.) Hard, tough, covered with mucus; shines like grease; small-shaped; expelled with much straining, or only on standing up
Partial paralysis of rectum
Rectum sore and burns
Fistula and large piles.≡ more ...