What to expect from chemotherapy for anal cancer

Chemotherapy may make cancer cells more responsive to radiotherapy. Medicines can be given by vein, tablet or both, depending on the regimen. Your team will explain when each treatment happens, how long appointments take and whether a temporary infusion device is useful. Treatment decisions reflect tumour size and position, nearby lymph nodes, general health and previous treatment.

During combined treatment, tiredness, nausea, reduced appetite, diarrhoea and mouth soreness may develop. The skin around the anus can become sore, irritated or moist, especially as radiotherapy continues. Bowel movements may feel urgent or painful. Your team can prescribe anti-sickness medicines, pain relief, creams and bowel treatments suited to your symptoms.

Wash gently with lukewarm water and follow the skin-care instructions from your radiotherapy team. Do not apply products to the treatment area unless they have approved them. Drink and eat as advised, keep a record of bowel changes, and wear loose clothing. Report pain early so treatment can be adjusted before it interferes with sleep or eating.

Call your team for fever, worsening anal pain, inability to pass stool or urine, repeated vomiting, severe diarrhoea, dehydration, new bleeding or skin breakdown. Seek emergency help for heavy bleeding, severe abdominal pain, fainting or difficulty breathing. Ask for clear after-hours contact details before treatment begins.

Ask how chemotherapy fits with radiotherapy, which skin products are allowed, how bowel symptoms will be treated, whether work or sex may be affected, and which changes should be reported immediately.