Overview Clostridioides difficile (klos-TRID-e-oi-deez dif-uh-SEEL) is a bacterium that causes an infection of the colon, the longest part of the large intestine. Symptoms can range from diarrhea to …

Oct 10, 2024 · Stool comes in a range of colors. All shades of brown and even green are considered typical. Only rarely does stool color indicate a possibly serious intestinal condition. Stool color is …

Aug 23, 2025 · Hemorrhoids (HEM-uh-roids), also called piles, are swollen veins in the anus and lower rectum. Hemorrhoids are like varicose veins. If they develop inside the rectum, they're called internal …

Oct 13, 2023 · Overview Gastrointestinal (GI) bleeding is a sign of a disorder in the digestive tract. The blood often shows up in stool or vomit but isn't always obvious. Stool may look black or tarry. …

Apr 15, 2025 · Constipation is usually treated with changes in diet and exercise or with nonprescription medicines. Constipation may require medicines, changes in medicines or other treatments …

Intestinal ischemia (is-KEE-me-uh) refers to a range of conditions that happen when blood flow to the intestines slows or stops. Ischemia can be due to a fully or partly blocked blood vessel, most often an …

Sep 20, 2025 · People who have had stomach or weight-loss surgery can develop dumping syndrome, which causes cramping, diarrhea and, sometimes, low blood sugar.

Sep 20, 2025 · Giardia infection, also called giardiasis, is caused by a tiny parasite. It infects part of the digestive system called the small intestine. Symptoms include stomach cramps, bloating, upset …

Oct 11, 2024 · Overview Irritable bowel syndrome (IBS) is a common condition that affects the stomach and intestines, also called the gastrointestinal tract. Symptoms include cramping, belly pain, bloating, …

Jan 18, 2025 · Diarrhea — loose, watery and possibly more-frequent passage of stool — is a common problem. Sometimes, it's the only symptom of a condition. At other times, it may be associated with …