The digestion process is partly managed by messages sent between the brain and digestive system. These messages are sent through nerves. When these nerves are damaged, messages between the brain and digestive system are blocked. This prevents the bowels from working properly.
The spinal cord runs from the base of the brain to the lower back. There are 2 main types of neurogenic bowel, depending on where along the spinal cord the damage occurs.
This happens when there is damage around the neck or chest. Messages between the colon and the brain are interrupted. As a result, a person may not feel the need to have a bowel movement. However, stool is still building up in the rectum. The build-up triggers a reflex causing the rectum and colon to react, leading to a bowel movement without warning.
This happens when there is damage around the lower end of the spinal cord. When these lower nerves are damaged, a person is unable to feel when a bowel movement is needed. Also, the reflex may be reduced, so the rectum has a difficult time emptying stool. This can lead to constipation.
Digital stimulation is done to encourage movement of the bowels by stimulating the rectum. With this procedure, the doctor will insert a gloved and lubricated finger into your rectum. The will slowly move the finger in a circle. Other types of stimulation include:
Suppositories—stimulate the nerves in the rectum lining
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Cotterill N, Maderbacher H, Wyndaele JJ, et al. Neurogenic bowel dysfunction: Clinical management recommendations of the Neurologic Incotinence Committee of the Fifth International Consultation on Incontinence 2013. Neurourol Urodyn. 2017; doi: 10.1002/nau.23289.