Get E-Book on COVID-19

Q. Why is there green stool a day after colonoscopy?

Answered by
Dr. Sumit Srivastava
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Jan 10, 2019

Hello doctor,

Yesterday, I had a colonoscopy and today I had a bowel movement that was bright green. Should I contact the doctor who performed the procedure or is this normal? I am a 32-year-old female.

Dr. Sumit Srivastava

General Medicine Internal Medicine


Welcome to

Bright green color stool could be due to the presence of bile in stool. During a colonoscopy, you were given laxatives that might have disturbed your intestinal flora that is responsible for the yellowcolor of the stool. Also, stool must have passed rapidly through the gut. Other causes could be:

1. Fat rich diet will increase the release of bile pigments and if it moves rapidly, your stool will be green. It occurs during a period of stress or infections.

2. Rarely diet rich in green leafy vegetables can cause green color stools, if malabsorption ensues or due to not chewing properly.

3. If you have any other symptoms like abdominal pain, bloating, nausea, vomiting or green stools, do not stop within the next 12 to 14 hours. Then I would suggest you consult your doctor. You can take probiotics to build up your intestinal flora.

Was this answer helpful?


Related Questions:
Had alcohol after 30 days of Polyethylene glycol intake. Will it lead to any adverse reaction?
Why is there green stool a day after colonoscopy?
Kindly suggest a good brand of infant formula for baby constipation?

This is a sponsored Ad. icliniq or icliniq doctors do not endorse the content in the Ad.

Consult by PhoneConsult by Phone Video ChatVideo Chat
Also Read Answers From:

Comprehensive Medical Second Opinion.Submit your Case

Related Questions & Answers

How to treat loose motions in a 12 days old baby?

Query: Hi doctor, My 12 days old baby boy has more frequent loose motions of up to 15 to 20 times a day. I am afraid of this. What is the treatment for this?  Read Full »

Can Pankaja kasthuri breathe easy cause green stool and lower abdominal pain?

Query: Hello doctor, I have 3 months old baby and am breastfeeding him. I had a cold and continuous cough for the past one month. So, I am having Pankaja kasthuri breathe easy since yesterday. Today, my stools are green colored, and I have lower abdominal pain. What can be the cause and how can I manage i...  Read Full »

I have rectal bleeding on and off for a year. Should I ask for colonoscopy?

Query: Hi doctor, I am a 32-year-old female. For almost a year, I have had rectal bleeding on and off. I started to have painful bowel movements and then I began to bleed. The blood is on my stool, in the toilet (at times) and when I wipe, I can see it on the toilet paper. Other symptoms I experience are ...  Read Full »

Also Read

Can naked body to body massage spread HIV?
Hello doctor, I recently had some business trip during which I had some naked body to body massage wherein massager vag...  Read more»
Are COVID-19 Patients Infectious for up to 90 Days After Recovery?
There have been reports of recovered COVID-19 patients getting reinfected and testing positive for almost 3 months. Read...  Read more»
Crohn's Disease
Crohn's disease causes inflammation of the digestive tract, which results in symptoms like severe diarrhea, stomach pain...  Read more»

Ask your health query to a doctor online?

Ask an Internal Medicine Physician Now

* guaranteed answer within 4 hours.

Disclaimer: All health Q&As published on this website is not intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek the advice from your physician or other qualified health-care providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website.