What are the causes of bowel dysfunction?

Not drinking enough fluid.
Not eating enough fibre.
Putting off going to the toilet.
Not moving enough and spending long periods of time sitting or lying in bed.
Not exercising.
A side effect of medication.
Change to your daily routine or diet.
Some neurological problems such as Parkinson’s disease and Multiple Sclerosis.
A problem with part of your body structure (anatomy) which is stopping you having your bowels open.
Stress and anxiety