The digestive system turns food into nutrients that are absorbed by the body and removes waste. The mouth, oesophagus, stomach, small and large intestine, rectum and anus are involved.
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Topic: More about the digestive system
When a person has cystic fibrosis their mucus glands secrete very thick sticky mucus which clogs the tiny air passages in the lungs and traps bacteria.
A diet high in fibre keeps the digestive system healthy.
Listeria infection is uncommon but very dangerous for the elderly, people whose immune systems are not working properly and pregnant women and their unborn babies.
Hepatitis B can cause serious illness or death, but immunisation can reduce the risk of infection.
Incontinence is a challenging problem for a carer but help is available from a range of sources so don't think you must cope alone.
Mesothelioma is a rare type of cancer that can develop decades after exposure to asbestos.
Peritonitis is a life-threatening emergency that needs prompt medical treatment.
See also Tests and treatments