Patient Comments: Melanosis Coli - Symptoms and Diagnosis

What symptoms, if any, did you experience with melanosis coli, and how were you diagnosed?

Comment from: M., 45-54 Female (Patient) Published: January 25

I had my very first routine colonoscopy today with no polyps but was diagnosed with melanosis coli. The doctor asked if I take laxatives or herbal teas and was somewhat surprised when I said no to both. I have never taken a laxative in all 50 years of my life and don't drink much tea. However I told him that I do add natural aloe vera (which apparently has laxative effects) to my smoothies at least once a week. He said that's probably the cause; he told me to stop taking aloe vera. I will but also plan to conduct further research because aloe has such great health benefits.

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Comment from: Mary Theresa, 55-64 Female (Patient) Published: April 26

I had a colonoscopy two days ago which revealed melanosis coli. I probably have used a laxative twice in ten years and only about eight months ago changed to drinking herbal teas (Yogi). Without using laxatives I really question how I have this.

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Comment from: Dr. Soni, 35-44 Male (Caregiver) Published: November 25

Pseudomelanosis coli gives the symptoms like mucus colitis. Frequent stools with mucus (no blood), colicky pain, gaseous distention of colons and tender colons are noted in a few patients, which prompted me to ask for colonoscopy, which turned out pseudomelanosis coli.

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Comment from: ysi, 55-64 Female (Patient) Published: October 11

Here's a thought, my 4th colonoscopy showed melanosis. Is it a coincidence they messed with the previous 3 perfect preparations-at-one-go, and instructed me to do half of the prep (8 glasses GoLytely) the night before and the other half (8 glasses GoLytely) the next morning, for an afternoon procedure! I basically marinated my colon overnight in a dark brown sludge, threw up the next morning, and then started all over again with a second prep, it seemed.

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Comment from: GKR, 45-54 Female (Patient) Published: May 11

I recently had a colonoscopy and was diagnosed with melanosis coli. I was very surprised to learn this is usually associated with laxative use. I do not use laxatives nor have I used any colon cleanse. I had a colonoscopy 10 years ago and there was no such diagnosis. I am confused and concerned about this diagnosis especially since I don't know the cause nor do I understand what this means to the health of my colon. I did recently start consuming Matcha green tea on occasion, I wonder if this could be the cause.

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Comment from: DGS, 55-64 Female (Patient) Published: August 10

I see that many others here also never used laxatives and were told they had melanosis coli. I had my colonoscopy 4 years ago and the very unpleasant doctor accused me of overuse of laxatives. I asked her if this might actually be endometriosis because I've had that and struggled with that my entire life. I have never had a need for laxatives because I have never been constipated. She snickered at me and insisted that I was lying. My son is in the medical field and said, 'yes, people say that all the time that they don't use laxatives'. I wonder if anyone has thought that it might be from something else! This makes me so angry to be treated this way.

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Comment from: jio, 45-54 Female (Patient) Published: May 19

I had a colonoscopy this week and was told that I have melanosis coli. I am confused as I do not use laxatives.

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Comment from: Bob, 55-64 Male (Patient) Published: February 18

I too was diagnosed with melanosis coli. I have been taking colon cleanse for several years. I was instructed to stop taking it.

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