question-icon

Can Blood Thinners Cause Bleeding During Bowel Movements?

default
Posted on Fri, 13 Oct 2017
Question: About a half hour after a bowel movement I noticed some irritation so went to clean myself with sanitary wipes and there was some blood on the wipe. I went on a blood thinner two days ago to treat a suspected blood clot. What should do about this? Contact my internist or the pulmonary doctor who put me on the thinner or see someone else or do nothing? What could this mean?
doctor
Answered by Dr. Ramesh Kumar (14 minutes later)
Brief Answer:
You should see a gastroenterologist.

Detailed Answer:
Hello Dear patient,
Thanks for choosing HealthcareMagic for your query.
Have gone through your details and i appreciate your concerns.There are a few things to consider when a person says he has blood in the stool.The first thing is if it is really blood. There are some food that might be in stool and give the impression it is blood and in fact, it is not. Unless it bright red blood (which is clear that it is blood). Other times the way to know if you are bleeding or not is having a stool occult blood test or a stool microscopy that will confirm the presence of blood with the stools.

Generally, blood coming from higher levels (stomach and small bowel) converts into a dark coal black color due to the changes the blood has in the bowel. It is the bleeding from lower parts (colon) that will show as bright red blood.

Have you ever had a colonoscopy done? After the age of 50, it is recommended that all people should have a colonoscopy every 5-10 years. Even if you have had this test in the last 5 years it might be recommended to repeat it as you are having this bleeding if the stool tests confirm you are really bleeding.

A CBC would be a good test to be done if you suspect bleeding to see if you are developing anemia as a complication of bleeding and need treatment for it or not.As you are on a blood thinner PT/INR test should be done to see if bleeding is related to blood thinner.

So to conclude:
1. we need to be sure you are bleeding or not- a stool test like faecal occult blood test and or stool microscopy for blood will help in this.

2. if it is confirmed that you are bleeding then you will need a colonoscopy to find the cause of it.

3. if you have bright red blood while defecating (passing stools) this might also be due to haemorrhoids which are mostly due to constipation so in meantime please make sure you take extra fibre with diet and drink plenty of water.

4. if you had any massive rectal bleeding than an urgent visit to a doctor is needed.

I hope this is helpful and answers your questions but please feel free to reply in case any more clarification is needed on this.

Kind regards,
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
Answered by
Dr.
Dr. Ramesh Kumar

Gastroenterologist

Practicing since :1986

Answered : 2805 Questions

premium_optimized

The User accepted the expert's answer

Share on

Get personalised answers from verified doctor in minutes across 80+ specialties

152 Doctors Online

By proceeding, I accept the Terms and Conditions

HCM Blog Instant Access to Doctors
HCM Blog Questions Answered
HCM Blog Satisfaction
Can Blood Thinners Cause Bleeding During Bowel Movements?

Brief Answer: You should see a gastroenterologist. Detailed Answer: Hello Dear patient, Thanks for choosing HealthcareMagic for your query. Have gone through your details and i appreciate your concerns.There are a few things to consider when a person says he has blood in the stool.The first thing is if it is really blood. There are some food that might be in stool and give the impression it is blood and in fact, it is not. Unless it bright red blood (which is clear that it is blood). Other times the way to know if you are bleeding or not is having a stool occult blood test or a stool microscopy that will confirm the presence of blood with the stools. Generally, blood coming from higher levels (stomach and small bowel) converts into a dark coal black color due to the changes the blood has in the bowel. It is the bleeding from lower parts (colon) that will show as bright red blood. Have you ever had a colonoscopy done? After the age of 50, it is recommended that all people should have a colonoscopy every 5-10 years. Even if you have had this test in the last 5 years it might be recommended to repeat it as you are having this bleeding if the stool tests confirm you are really bleeding. A CBC would be a good test to be done if you suspect bleeding to see if you are developing anemia as a complication of bleeding and need treatment for it or not.As you are on a blood thinner PT/INR test should be done to see if bleeding is related to blood thinner. So to conclude: 1. we need to be sure you are bleeding or not- a stool test like faecal occult blood test and or stool microscopy for blood will help in this. 2. if it is confirmed that you are bleeding then you will need a colonoscopy to find the cause of it. 3. if you have bright red blood while defecating (passing stools) this might also be due to haemorrhoids which are mostly due to constipation so in meantime please make sure you take extra fibre with diet and drink plenty of water. 4. if you had any massive rectal bleeding than an urgent visit to a doctor is needed. I hope this is helpful and answers your questions but please feel free to reply in case any more clarification is needed on this. Kind regards,