Gastrointestinal Issues: Causes of Hard Stools and Blood - Gastroenterology and Hepatology

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Gastrointestinal issues related to bowel movements?


Hello, doctor.
Previously, I mentioned that my stools are very dry and hard, with some blood (separated from the stool and not much).
I have a bowel movement about once every one to two days, and I immediately feel pain in my abdomen after dinner, which the doctor said is irritable bowel syndrome.
However, I would like to understand where the blood is coming from.

Hua, 10~19 year old female. Ask Date: 2021/03/18

Dr. Chen Shidian reply Gastroenterology and Hepatology


It may be microvessels near the anus that are causing persistent bleeding.
A rectoscopy (approximately 10 cm) or a sigmoidoscopy (approximately 60 cm) can be performed for examination.

Reply Date: 2021/03/18

More Info


Understanding gastrointestinal issues, particularly those involving hard stools and the presence of blood, can be quite concerning. Based on your description, it sounds like you are experiencing a combination of symptoms that may be linked to several underlying conditions, primarily related to your gastrointestinal tract.

Firstly, the presence of hard stools is often indicative of constipation. When stools become hard, they can cause strain during bowel movements, leading to discomfort and potential injury to the rectal area. This injury can manifest as anal fissures or hemorrhoids, both of which can cause blood to appear on the toilet paper or in the stool. The blood you are observing, especially if it is bright red and separate from the stool, is commonly associated with these conditions.
Anal fissures are small tears in the lining of the anus, often caused by passing hard stools. They can be quite painful and may lead to bleeding during or after a bowel movement. Hemorrhoids, on the other hand, are swollen blood vessels in the rectal area that can also bleed, particularly when straining to pass hard stools. The blood from these sources is typically bright red, which aligns with what you have described.

Your mention of experiencing abdominal pain shortly after eating dinner, which leads to a strong urge to have a bowel movement, could be related to a condition known as irritable bowel syndrome (IBS). IBS is characterized by a combination of symptoms, including abdominal pain, bloating, and changes in bowel habits, such as diarrhea or constipation. The pain you feel may be a result of increased bowel activity triggered by food intake, which is common in individuals with IBS.

In terms of the blood's origin, if it is indeed from an anal fissure or hemorrhoids, it is crucial to address the underlying cause of your hard stools. This can often be managed through dietary changes, such as increasing fiber intake, staying well-hydrated, and possibly using stool softeners or laxatives as recommended by your healthcare provider. A diet rich in fruits, vegetables, and whole grains can help soften stools and promote regular bowel movements.

Additionally, if you have not already done so, it may be beneficial to consult with a gastroenterologist for a thorough evaluation. They may recommend diagnostic tests, such as a colonoscopy, to rule out other potential causes of gastrointestinal bleeding, especially if your symptoms persist or worsen. Conditions such as inflammatory bowel disease (IBD), diverticulosis, or even colorectal polyps can also lead to similar symptoms and should be considered.

In summary, the blood you are observing is likely due to irritation or injury in the anal region caused by hard stools, possibly related to hemorrhoids or anal fissures. Addressing your constipation through dietary changes and possibly medication can help alleviate your symptoms. However, ongoing symptoms warrant further investigation by a healthcare professional to ensure there are no more serious underlying conditions. Always prioritize open communication with your healthcare provider regarding your symptoms and concerns for the best management of your gastrointestinal health.

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