Blood in Stool: Potential Causes and Health Risks - Internal Medicine

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Bowel issues?


I have recently experienced occasional blood in my stool, and there is some pain during bowel movements.
If this is due to hemorrhoids, colorectal cancer, or polyps, what impact could it have on my health if I don't see a doctor? Additionally, my menstrual flow has decreased recently; could this be related to the blood in my stool?

Lü Dōng, 20~29 year old female. Ask Date: 2004/12/22

Dr. Hong Hongchang reply Internal Medicine


Hello, Green Winter: The most common causes of bloody stools may include hemorrhoids, polyps, enteritis, tumors, or coagulation disorders, so further examination is advisable.

Reply Date: 2004/12/22

More Info


Experiencing blood in your stool can be concerning and may indicate various underlying health issues. It is essential to understand the potential causes and associated health risks to make informed decisions about your health.
Blood in the stool can arise from several conditions, including hemorrhoids, anal fissures, diverticular disease, polyps, and colorectal cancer. Hemorrhoids, which are swollen blood vessels in the rectal area, are a common cause of blood in the stool and can also lead to pain during bowel movements. Anal fissures, or small tears in the lining of the anus, can also cause bleeding and discomfort. Both conditions are often associated with straining during bowel movements, which can occur due to constipation or hard stools.

Polyps are growths on the lining of the colon or rectum that can be benign or precancerous. While most polyps do not cause symptoms, some can bleed, leading to blood in the stool. Colorectal cancer is a more serious condition that can present with blood in the stool, changes in bowel habits, unexplained weight loss, and abdominal discomfort. It is crucial to note that early detection of colorectal cancer significantly improves treatment outcomes.

Regarding your question about whether not seeing a doctor could impact your health, it is highly advisable to consult a healthcare professional if you notice blood in your stool, especially if it is accompanied by pain. Ignoring these symptoms could lead to the progression of a potentially serious condition. A healthcare provider can perform a thorough evaluation, which may include a physical examination, blood tests, and imaging studies or a colonoscopy to determine the cause of your symptoms.

As for your menstrual cycle changes, such as a decrease in flow, it is essential to consider that various factors can influence menstrual patterns, including hormonal changes, stress, weight fluctuations, and underlying health conditions. While blood in the stool and changes in menstrual flow may not be directly related, both symptoms warrant medical attention. Hormonal imbalances or conditions affecting the reproductive system could potentially impact both your menstrual cycle and overall health.

In summary, experiencing blood in your stool and changes in your menstrual cycle are symptoms that should not be overlooked. It is crucial to seek medical advice to identify the underlying causes and receive appropriate treatment. Early intervention can prevent complications and improve your overall health. If you are hesitant to see a doctor, consider the potential risks of delaying diagnosis and treatment, especially for conditions like colorectal cancer, which can be more effectively managed when caught early.

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