What Could Be Causing Blood in Stool?

Author: Dr. Amogh Dudhwewala

Find out the reasons behind the presence of blood in your stool right here!

Understanding Bleeding Stools: Causes, Symptoms, and When to Seek Help 

Bleeding stools, though a concerning topic, is something that many individuals experience at some point in their lives. While it can be alarming, it’s important to remember that bleeding stools can have various causes, ranging from minor issues to more serious underlying conditions. In this comprehensive guide, we’ll explore the common causes, symptoms, and when to seek medical attention if you or a loved one notice bleeding in the stool. 

Understanding Bleeding Stools 

Bleeding stools, also known as rectal bleeding or hematochezia, refer to the presence of blood in the stool. The blood can appear as red streaks, clots, or can even make the entire stool appear black (melena). It’s crucial to distinguish between bright red blood and dark, tarry stools, as they can indicate different sources of bleeding and potential causes. 

Is Blood in Stool Serious? 

The seriousness of blood in the stool depends on its underlying cause. While some cases might be relatively benign, others could indicate more serious health issues. It’s essential not to dismiss any instance of rectal bleeding, as it can be an early sign of potentially significant problems. Consulting a healthcare professional can help determine the cause and appropriate course of action. 


Common Causes of Bleeding Stools 

  • Hemorrhoids: Swollen blood vessels in the rectal area, known as hemorrhoids, are one of the most frequent causes of bleeding stools. They can be internal or external and are often a result of straining during bowel movements. 
  • Anal Fissures: Small tears or cracks in the lining of the anus, usually caused by passing hard stools, can lead to bleeding during bowel movements. 
  • Gastrointestinal Infections: Infections in the digestive tract, such as bacterial gastroenteritis, can cause inflammation and irritation, leading to bleeding. 
  • Peptic Ulcers: Ulcers in the stomach or duodenum can cause bleeding that appears as dark, tarry stools due to the interaction between stomach acid and blood. 
  • Inflammatory Bowel Disease (IBD): Conditions like Crohn’s disease and ulcerative colitis can cause chronic inflammation in the digestive tract, leading to bleeding. 
  • Diverticular Disease: Small pouches (diverticula) in the colon can become inflamed or infected, causing bleeding and discomfort. 
  • Colorectal Polyps or Cancer: Abnormal growths in the colon or rectum, including polyps or cancerous tumors, might lead to bleeding. While not always the case, it’s essential to rule out these possibilities. 

Symptoms to Watch For 

Aside from the obvious presence of blood in the stool, there are several symptoms that might accompany bleeding stools: 

  • Abdominal Pain: Persistent abdominal pain, especially if it worsens or is accompanied by changes in bowel habits, should not be ignored. 
  • Change in Bowel Habits: If you notice persistent diarrhea, constipation, or a change in the size or shape of your stools, it could indicate an underlying issue. 
  • Weight Loss: Unintended weight loss without changes in diet or exercise can be a sign of a more serious problem. 
  • Fatigue: Chronic bleeding can lead to iron deficiency anemia, which can cause fatigue and weakness. 

When to Seek Medical Attention 

While some instances of bleeding stools might resolve on their own, there are certain situations that warrant immediate medical attention: 

  • Large Amounts of Blood: If you notice a significant amount of blood in your stool or the bleeding is persistent, consult a healthcare professional. 
  • Severe Pain: Intense abdominal pain or discomfort, especially when accompanied by bleeding, should be addressed promptly. 
  • Dizziness or Fainting: If bleeding leads to significant blood loss, it can result in dizziness or fainting, requiring immediate medical evaluation. 
  • Family History of Colon Cancer: If you have a family history of colorectal cancer, it’s important to be vigilant and discuss any bleeding stools with a doctor. 

How Do I Stop Blood in My Stool? 

The appropriate steps to address blood in your stool depend on the underlying cause. Here are some general guidelines: 

  • Hydration and Diet: Drinking plenty of fluids and consuming a diet rich in fiber can help prevent constipation and reduce straining during bowel movements. 
  • Good Bathroom Habits: Avoid straining, take your time, and avoid sitting on the toilet for prolonged periods. 
  • Topical Treatments: Over-the-counter creams or ointments can provide relief for conditions like hemorrhoids. 
  • Medical Evaluation: If bleeding persists, worsens, or is accompanied by other symptoms, seek medical attention for a proper diagnosis and treatment plan. 
  • Prescribed Medications: Your doctor might recommend medications to treat underlying conditions causing the bleeding. 
  • Procedures and Surgery: In cases like persistent hemorrhoids or certain polyps, medical procedures or surgery might be necessary to stop the bleeding. 

Bleeding stools can be a distressing experience, but it’s crucial to remain informed and proactive. While many cases are due to benign causes like hemorrhoids or anal fissures, it’s always advisable to consult a medical professional if you notice any signs of rectal bleeding. Remember that early detection and appropriate medical care are essential for managing and treating any underlying conditions that might be causing the bleeding. Your health and well-being should always be a priority.