What does "Bowel lumen" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
The bowel lumen is the inside part of the bowel, or intestines. It's like the inside of a tube or pipe, where the food you eat passes through after it's been broken down in your stomach. This is where your body absorbs nutrients from the food. So, when doctors talk about the bowel lumen, they're referring to the inside space of your intestines.
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