Unusual Findings
These guides offer context for what you see—and when it is time to seek medical care. We always include red-flag reminders.
Start here
If you’re deciding between “food dye” and “urgent,” use this guide first.
Red or black stool: food dye or urgent?If you’re seeing blood and want the most common causes + stop rules:
Blood in poop: common causes and when it’s urgentIf you’re seeing mucus or recognizable food:
Guides coming soon
- • Worms in stool
Guides
- • Blood in poop: common causes and when it is urgent
- • Floating stool: steatorrhea or just trapped gas?
- • Green poop: antibiotics, spinach, or fast transit?
- • Mucus in poop: common causes and when to worry
- • Parasites vs. “worms”: a calmer checklist
- • Pencil thin stool: colon cancer sign or just constipation?
- • Red or black stool: food dye or urgent?
- • Undigested food in poop: common causes and when to worry
- • White specks in stool: parasite or just food?
- • Yellow stool: bile acid diarrhea or fast transit?