Blood in Stool with Clots: What Could Be the Cause?

Seeing blood clots in your stool can be alarming, but understanding the possible causes is essential for proper diagnosis and treatment. Below are some of the most common reasons behind this condition.

1. Rectal Conditions Such as Hemorrhoids or Anal Fissures

One of the most frequent causes of blood in the stool is related to rectal issues. Hemorrhoids, which are swollen veins in the rectum or around the anus, can bleed during bowel movements, sometimes resulting in visible blood clots. Similarly, anal fissures—small tears in the lining of the anus—can also lead to bleeding.

2. Gastrointestinal Diseases Including Inflammatory Bowel Disease

Conditions affecting the digestive tract, such as inflammatory bowel disease (IBD), ulcerative colitis, Crohn's disease, bacterial dysentery, intestinal tuberculosis, or even colorectal cancer, can cause internal bleeding in the intestines. This may result in blood mixing with the stool, sometimes forming clots. A colonoscopy is often necessary to determine the exact cause and guide treatment.

3. Systemic Illnesses Like Blood Disorders

Certain systemic conditions, particularly those involving the blood, can lead to gastrointestinal bleeding. For example, patients with Henoch-Schönlein purpura (an allergic vasculitis) may experience intestinal mucosal bleeding. Other blood disorders like hemophilia, leukemia, or thrombocytopenic purpura can also cause clot-like blood in the stool due to impaired clotting mechanisms.

4. Medication Use in Elderly Patients

Older adults who take anticoagulant or antiplatelet medications such as aspirin or clopidogrel (Plavix) may experience minor internal bleeding in the digestive tract. Additionally, the use of traditional herbal remedies aimed at promoting circulation could potentially irritate the intestinal lining and contribute to bleeding. A detailed medical history is crucial in identifying drug-related causes.

If you notice blood clots in your stool, it's important to consult a healthcare professional to rule out serious underlying conditions and receive appropriate care.