By Sam Blanchard Senior Health Reporter For Mailonline
Published: 16:20 BST, 1 July 2019 | Updated: 16:23 BST, 1 July 2019
A woman who noticed bubbles in her urine found it was caused by faeces leaking into her bladder.
The 72-year-old was told she had a colovesical fistula, a rogue connection between her large intestine and bladder.
Doctors say one of the major symptoms of the fistulas, considered rare, is seeing bubbles in your urine.
This is thought to occur when gas that escaped from the colon, the large intestine, mixes with urine in the bladder.
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In the short video a few bubbles of air are the first thing to burst into the woman's bladder as it is filmed during a medical examination
Medics released a stomach-churning clip showing faeces from the woman leaking out of her intestines and into her bladder.
Soft, yellow faeces can be seen pouring into the fluid in the bladder through a small hole on its surface after a burst of bubbles.
The unidentified woman's fistula is believed to have been triggered by an earlier illness. Medics had to surgically remove part of her colon.
The unnamed woman's case was revealed by doctors at the University of California, Los Angeles, after she was relieved of the problem.
A colovesical fistula is a channel between the intestine and bladder which may open up as a