Why does my poop smell like coffee?

Coffee can make your poop smell like coffee. This happens because coffee stimulates digestion and contains strong aromatic compounds—such as chlorogenic acids and oils—that can pass through your digestive tract largely intact, leaving a coffee-like odor in your stool.

Other factors may also play a role, including how much coffee you drink, your gut motility, and how your body absorbs certain compounds. In most cases, coffee-scented stool is harmless. However, if it's accompanied by changes in color, consistency, frequency, or pain, it could signal something more—like malabsorption, an infection, or another digestive issue worth investigating.

Because symptoms can overlap across many conditions, guessing isn't the best strategy. Taking a free, instant, online symptom check can help you understand what's likely going on, identify possible causes, and guide your next steps—whether that's simple lifestyle changes or seeing a doctor. It only takes a few minutes and could save you hours of worry.

Reviewed for medical accuracy: 07/15/2026