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Read moreNHS Choices - Introduction
(09/01/2015)
Mucositis is a condition characterised by pain and inflammation of the body's mucous membrane.
The mucous membrane is the soft layer of tissue lining the digestive system from the mouth to the anus.
Mucositis is often divided into two main types, including:
- oral mucositis – which can cause mouth ulcers (sores) and pain or difficulty swallowing
- gastrointestinal mucositis – which occurs inside the digestive system and often causes diarrhoea
It's also possible for mucositis to affect the lining of the anus – a condition known as proctitis.
Read more about the symptoms of mucositis.
Why does mucositis happen?
Mucositis is a relatively common side effect of chemotherapy. It's also sometimes caused by radiotherapy, especially if it involves the head or neck.
Patients receiving radiotherapy for other cancers, such as breast cancer, will not usually develop mucositis, because the therapy is not targeted near the mucous membranes.
The digestive tract is more prone to the harmful effects of chemotherapy or radiotherapy, which can damage the delicate lining.
If you're undergoing cancer treatment that could potentially cause mucositis, you'll be checked regularly for the condition. Mucositis can usually be diagnosed after an examination or a description of your symptoms.
Read more about the causes of mucositis and diagnosing mucositis.
Who is affected?
It's estimated that around 40% of people receiving chemotherapy as part of their cancer treatment will develop some degree of mucositis. It can be more severe in some people, depending on the treatment used.
Mucositis is more common among certain types of cancer. For example, it's estimated that up to 97% of people who have radiotherapy for head or neck cancer will develop some form of mucositis.
About 70% of people receiving high doses of chemotherapy because they are undergoing a stem cell transplant (bone marrow transplant) will develop mucositis.
How is mucositis treated?
The main aim of treatment for oral mucositis is to prevent infection and reduce any pain. This is done by using painkillers and practising good oral hygiene.
Treatments are also available to reduce the symptoms of oral mucositis, such as low-level laser therapy (LLLT) and a medication called palifermin.
Treatment for gastrointestinal mucositis aims to reduce the main symptoms of the condition, such as diarrhoea and inflammation. Treatment includes a combination of medicines and self-care measures.
The symptoms of mucositis should begin to improve a few weeks after chemotherapy or radiotherapy has finished, although it can sometimes take longer.
Read more about treating mucositis.
Complications
The most serious cases of mucositis can lead to a number of associated health complications.
Many people with mucositis find it painful to swallow food and require alternative feeding methods, such as a feeding tube.
Also, mouth ulcers can become infected with bacteria. The infection can spread to the blood, then on to other organs. This is known as sepsis and can be life-threatening.
Read more about the complications of mucositis.
Can mucositis be prevented?
It's not always possible to prevent mucositis, but some treatments can be taken during radiotherapy or chemotherapy to try to reduce the severity of mucositis or how long it lasts.
Treatments include medications such as palifermin, benzydamine, sulfasalazine and amifostine.
Read more about preventing mucositis.