HomeAnswersMedical Gastroenterologyblood lossWhat is the reason for chronic blood in stools?

My husband gets blood in stool for a couple of years with no finding in colonoscopy. Please help.

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Ajeet Kumar

Medically reviewed by

Dr. Vinodhini J.

Published At August 7, 2020
Reviewed AtNovember 30, 2023

Patient's Query

Hello doctor,

I am writing on behalf of my husband who is suffering from blood in stool a couple of years now, but colonoscopy and gastroscopy do not show something that can justify the blood. I would appreciate your advice because we cannot find the source of the blood.

Answered by Dr. Ajeet Kumar

Hello,

Welcome to icliniq.com.

The description you provide coincides with obscure overt GI (gastrointestinal) bleeding which means overt bleeding and having an obscure cause. Since he already had an endoscopy and colonoscopy and which were unremarkable, then he might have small intestinal bleeding. This can easily be missed on endoscopy, colonoscopy and in fact, time CT (computerized tomography) scans are unable to detect it. The approach as per guidelines is to repeat the gastroscopy or colonoscopy given the predominant symptoms of the patients. For example, if some have upper abdominal pain, or lower abdominal pain, or discomfort should repeat the testing with the respective given symptoms. The reason is that the endoscopist sometime can miss an obvious abnormality in the colon or stomach when they are not prepared enough, or performed in a situation of emergency. So the yield of detection after a second repeat examination before jumping to expensive testing is always recommended and often rewarding. So I suggest you discuss this thing with your endoscopist. The second investigation in the row is capsule endoscopy which can detect the hidden occult causes in the small bowel. But this has to be done in a controlled setup and the test is somewhat expensive as well. You did not share his age, plus any symptoms related to abdomen besides bleeding may help us to figure out the likely potential cause underlying his problem. You can share the images or complete colonoscopy and endoscopy reports with me, plus any blood test that he had recently or in the last three years which would help to understand his condition fully. There is a long list of disorders that can cause obscure overt bleeding in the GI tract namely angiodysplasia, Dieulafoy's lesion, telangiectasia, Meckel diverticulum, small bowel tumor, and Heyde's syndrome.

Investigations to be done

After providing more information, and previous lab reports.

Treatment plan

Once establish the potential cause underlying bleeding.

Regarding follow up

Follow up to provide more information as asked above.

Patient's Query

Hi doctor,

I would like to thank you for your prompt response to my issue. I have more details to share since my previous message as you clarified was not very informative. My husband is 60 years old, and his diagnosis after having colonoscopy was chronic ulcerative colitis, localized in the rectum (ulcerative colitis), and accompanying milder lesions in the left colon. I am attaching the relevant CD but because I have problems downloading it and you may not be able to watch it, so I am also attaching photos of the colonoscopy. His gastroscopy has showed gastric hyperemia and marked esophagitis. I have the full histological report available in Greek, so in case you need to read it I could give it for translation. Both colonoscopy and gastroscopy were made after his treatment with Salofalk 4 g rectal, so that there would be no bleeding. The doctor has also ordered a CT scan since he was also feeling sharp pains in his stomach, so I am also attaching the relevant CD. In case, you cannot download it too, and you need the written CT report I can also send it for translation. As I have mentioned above, he has been treated with Salofalk 4 g (rectal) for a few months. During this treatment the blood in stool stops. When he ends the treatment the blood starts again. And nowadays more often than it used to. When he starts Salofalk again, it stops immediately. This also happens when he takes pills Nexium for his stomach (heartburns). While taking the pills he feels fine and when he stops the heartburn returns. The color of the blood is vivid red (not dark red) and as far as he can see, he locates it on the stool. Other than the stomach, he feels no other pain, nor does he have diarrhea. If he does have, I do not know if it could be due to a usual cold. Generally, diarrhea is rare. During these couple of years, he has never suffered from fever or vomit. Only yesterday he just had fever and the feeling of vomiting. I am also attaching his recent blood tests.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

Thanks for providing much insight into his symptoms and reports (attachment removed to protect patient identity). I have reviewed all the blood reports and the endoscopic pictures. But at this moment, I am unable to see the radiological images that you shared. Plus I would need that you should provide me colonoscopy report, gastroscopy report, CT scan report, and lastly histopathology report from gastroscopy and colonoscopy. All in translation, please. Since you already mentioned that he was found to have chronic ulcerative colitis (UC) on colonoscopy with the involvement of the rectum and left colon and his response to Solafalk. I think that he had Solafalk-responsive left-side colitis. Since he has been taking Solafalk when he underwent colonoscopy, there is still that we can appreciate microscopic activity on biopsy. And that is why I want to see those histopathological reports to conclude that he has UC and not other colitis-like infections. I am afraid that he should be using Solafalk for regular use, for the rest of his life. Since Solafalk is an anti-inflammatory drug and works only when used. If stopped, then he is deemed to recur the disease. For prevention of the frequency of recurrence, he might need low-dose immunosuppressive medications like Azathioprine or 6 Mercaptopurine. His doctor might have discussed this with you. Since his colitis immediately responds to Solafalk I do not think that we need to give him any steroids because the role of steroids and Ssolafalk is similar i.e. to bring remission to an acute flare of active colitis. I have seen that his Amylase is 200 plus, has he been given Azathioprine or 6 Mercaptopurine before? Pancreatitis with increased amylase is one of the common side effects of Azathioprine. I would need to check for occult TB, hepatitis B, and infection before starting him on Azathioprine. Please find the below investigations.

Investigations to be done

Blood gamma interferon for tuberculosis, HbsAg, Hb core total, HCV antibody, and serum lipase.

Patient's Query

Hello doctor,

I will show your response to my husband to read it, and I will let you know if he shares something new with me, regarding what you have asked me. I will also have the reports translated but this may take a few days because I do not know if they will have it ready by the end of the week, and next week and for the following 15 days, I will be away. I will try to have all the necessary documents ready as soon as possible.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

It is fine if the reports will take time to be available. Meanwhile, he should continue taking Solafalk (Mesalazine) if already taking. Or if he is not currently on any medication, he should start taking tablet Asacol (Mesalamine) 400 mg two tablets thrice daily, which means a total of 6 tablets equal to 2.4 gm of Mesalamine in a day. Since you mentioned and as far as I understand that he has some disease activity in the left side of colon, and not only limited to the rectum. In a condition, where disease activity only involves rectum, Enams can be preferred. I also believe he will be happy to use oral medications since it is less cumbersome than a rectal enema.

I will be waiting to hear from you again. And also how your husband feels about my plan of action considering his problem.

The Probable causes

Left side ulcerative colitis responsive to Mesalazine enema.

Investigations to be done

Blood gamma interferon for tuberculosis. Hbs Ag. Hb core total. Hcv antibody. Serum lipase plus chest x-ray PA view.

Patient's Query

Hello doctor,

I hope you have already been on vacation. I am sending you translations of both my husband's histological report as well as his CT (computed tomography) of the upper and lower abdomen. The translation for the CT is actually from the internet. He has started again treatment with Salofalk (mesalazine) 4 g rectal, but again when he quits, the blood comes back. When someone takes a medicine forever, then the medicine will provoke other problems that never existed. This is the part that bothers him and me a lot. This is why he also takes Pariet for the burning from his stomach and then quits again. He has not done the blood exams you asked him to do, because this is the part we forgot. He did the regular exams and his RBC (red blood cell) is 4.41, his HB is 12.6 and his Ht is 39.3 (I believe from the blood he loses). Ferritin is 13.8ng/ml and HDL 35. The sedimentation rate of Reds is 20 mm. Sometimes I am thinking if this could be a bacteria from sushi.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

I have reviewed the reports (attachment removed to protect the patient's identity). But I can not see a CT scan report in translation. But that is fine if there is no abnormality on the CT scan you need not share. You are right about his anxiety regarding the long-life use of these medications, but I must tell you these Solafalk and others in the group namely Asacol, which I previously suggested usually work in the bowel and do not get absorbed in the blood to cause side effects. That is why this medication can be used for years before any side effects develop. I was more in favor of oral tablets of Asacol (Mesalamine) 800 mg thrice daily. Since your husband has disease activity in the transverse colon and unfortunately these enemas of Solafalk work up to most distal portions of the large bowel namely the rectum, sigmoid colon, and left side of the colon. I suggest that he can discuss this with his treating physician. Lately, I also asked for the start of immunosuppressive medications. But if he is not comfortable then at least he should not think of stopping Solafalk or Asacol (if he starts). Unfortunately, he has to remain on at least one of these medications to keep his ulcerative colitis in remission. Well, sushi is seafood, and it can cause certain bugs within the bowel, but this bug does not long that much longer. If it was an infection with certain bugs acquired via sushi, it should have resolved within three weeks or so without any antibiotics. Pariet is fine but the acidity is not a side effect nor a result of ulcerative colitis. Again they are safe medications and can be used for a longer duration.

Thank you.

Patient's Query

Hello doctor,

Thank you again so much. I will again send him all your answers and advice and I will let him decide what to do because he wants to read your advice again. For some reason, the CT did not reach you and I am re-sending it, just to take a look. In case you find something interesting. If it is not sent again, then there might be a problem from my side. Again thank you very very much.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

This is absolutely my pleasure. I am humbled to listen to your courteous and generous remarks as always. The CT scan report is not attached yet. You can add later on when you follow up after your husband's acknowledgment and once he gives his response on the plan of action which we have discussed. Stay happy and stay safe.

Thank you.

Patient's Query

Hello doctor,

So nice to hear from you. I am so glad you wrote to me, because these days, with the kids at a new school, my stress was so high that each time I said that I should text you, then I forgot! My husband happened to be next to me now that I saw your message and he smiled. He asked me to tell you that he by himself decided to stop for a while the medication because he wanted to start a diet and so far his symptoms have stopped. He also eats Greek Mastiha. The medications worked, the diet works, and now he wants to see if the diet works alone. I have sent you the CT scan reports. I hope this time it opens, just for a quick glance, in case you find something weird. I tried to translate it and my husband has made some corrections.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

Well, I have had no experience with Mastiha. I think that is probably a plant derivative (herbal medicines I guess). I absolutely agree that he should take a chance with diet, but to be very honest, given his histology report and evidence of chronic active ulcerative colitis in the large bowel; would be least to provide any benefit in the long term. You probably know that ulcerative colitis is remitting relapsing disease, so at times the disease can go into remission, and patients often confuse that the diet ( in the absence of medicines) has caused remission. But after some time (variable) the disease recur with the start of bleeding in stools and abdominal pain. So this was my concern, which was in favor of continuing him on Solafalk at least for regular use. If it were allergic colitis (eosinophilic colitis or food allergy), the dietary modifications would have been the best step to start with. I want to know if he can get a simple stool Calprotectin level, and show it to me. This will tell if the disease is in remission at the moment.

The Probable causes

Chronic active ulcerative colitis ( up to transverse colon)

Patient's Query

Hello doctor,

I will send him your response in his e-mail and I will ask him to do as you said. I will let you know.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

Thank you once again. Yeah sure, keep me posted. I surely understand his concern and would look forward to tailoring the treatment plan according to his wishes.

Thank you.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Ajeet Kumar
Dr. Ajeet Kumar

Medical Gastroenterology

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