Blood in Stool and Left Rib Pain: Gastrointestinal Concerns Explained - Gastroenterology and Hepatology

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Blood in the stool and rebound tenderness below the left rib cage?


Hello, doctor.
In the past year, I have experienced some gastrointestinal issues.
Initially, an endoscopy revealed that I had a gastric ulcer, but follow-up reports indicated that it has healed.
However, I have continued to experience diarrhea and blood in my stool, so I underwent a colonoscopy, which showed normal results.
I would like to know what further tests you would recommend since both of these examinations were normal.
Additionally, I want to ask if the rebound tenderness I feel when pressing on the left side below my rib cage could be related to my gastrointestinal issues.
I have also consulted an orthopedic specialist and had an abdominal ultrasound, both of which returned normal results.
Thank you very much for your assistance!

Bǎoshòu wèi cháng wèntí kùnrǎo de rén, 20~29 year old female. Ask Date: 2023/05/08

Dr. Hu Guozheng reply Gastroenterology and Hepatology


Hello, it is recommended to return for a follow-up appointment and discuss with the physician.
Thank you.

Reply Date: 2023/05/08

More Info


When it comes to gastrointestinal issues, particularly those involving blood in the stool and pain in the left rib area, it is essential to consider a variety of potential causes and the appropriate steps for further evaluation. Based on your history of gastrointestinal problems, including a previously diagnosed gastric ulcer and ongoing symptoms like diarrhea and blood in your stool, it is understandable that you are concerned about your health.

Firstly, the presence of blood in the stool can be alarming and may indicate several conditions ranging from benign to serious. Since you have undergone both an upper endoscopy (gastroscopy) and a colonoscopy, and both tests returned normal results, this is a positive sign. However, it does not completely rule out all potential issues. Blood in the stool could be due to several factors, including:
1. Hemorrhoids: Even if you have been told you do not have hemorrhoids, they can sometimes be present without being easily detected. They can cause bright red blood on the surface of the stool or in the toilet bowl.

2. Anal fissures: These are small tears in the lining of the anus, often caused by passing hard stools, and can lead to bleeding.

3. Gastrointestinal infections: Some infections can cause diarrhea and blood in the stool, even if they do not show up on standard imaging tests.

4. Inflammatory bowel disease (IBD): Conditions like Crohn's disease or ulcerative colitis can cause symptoms similar to yours, including abdominal pain and blood in the stool.

5. Diverticular disease: Diverticulitis can cause localized pain and bleeding, particularly if there is inflammation or infection in the diverticula.

Regarding the left rib pain you are experiencing, this could be related to several factors as well. While it is possible that this pain is gastrointestinal in nature, such as referred pain from the stomach or intestines, it could also be musculoskeletal or related to other organs. The fact that you have had normal imaging studies (like ultrasound) and consultations with specialists is reassuring, but it does not completely eliminate the possibility of underlying issues.

Here are some recommendations for further evaluation:
1. Follow-up with a Gastroenterologist: Given your history and ongoing symptoms, it may be beneficial to have a follow-up appointment with a gastroenterologist. They may suggest additional tests, such as stool tests for infections, imaging studies like a CT scan, or even a capsule endoscopy if they suspect small bowel issues.

2. Consider a diet review: Sometimes, dietary factors can contribute to gastrointestinal symptoms. Keeping a food diary to track what you eat and any associated symptoms may help identify potential triggers.

3. Explore functional gastrointestinal disorders: Conditions like irritable bowel syndrome (IBS) can cause symptoms such as abdominal pain, bloating, and changes in bowel habits without any structural abnormalities.

4. Evaluate for non-gastrointestinal causes: If the pain persists, it may be worthwhile to consult with a primary care physician or a specialist in pain management to explore other potential causes of your rib pain, including musculoskeletal issues or even referred pain from other organs.

In conclusion, while your previous tests have returned normal results, it is essential to continue monitoring your symptoms and seek further evaluation as needed. Blood in the stool and abdominal pain should not be ignored, and a thorough investigation is warranted to ensure that any underlying issues are addressed. Always consult with your healthcare provider for personalized advice and treatment options.

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