Side effects may peak after the final treatment
Short-term effects often build gradually during a course of radiotherapy. Skin soreness, tiredness, bowel or bladder irritation, swallowing discomfort and other effects may continue or briefly worsen after treatment ends.
The timing varies with the treatment area, dose, number of treatments and whether chemotherapy or another treatment was given at the same time. Many short-term effects improve over the following weeks, but the expected pattern is specific to your treatment.
Continue the skin care, medicines, diet or other advice given by your department. Check before starting a new cream, supplement or remedy on the treated area.
When is the treatment assessed?
Radiotherapy does not always produce an immediate change that can be measured. Cancer cells may die over days or weeks, and inflammation after treatment can make an early scan difficult to interpret.
The timing of examination, blood tests or imaging therefore depends on the cancer and purpose of treatment. An early scan is not automatically more informative. Your team can explain what they plan to assess and when.
Follow-up is different for different treatments
Follow-up may be with the radiotherapy department, the team that referred you, a specialist nurse or another service. It may happen in person or by telephone.
The appointment is a chance to review recovery, side effects and the next stage of care. Follow-up after cancer treatment explains why schedules and surveillance scans vary.
Before leaving the department, make sure you know:
- who is responsible for follow-up;
- when you should expect contact or an appointment;
- which symptoms need earlier advice;
- which telephone number to use;
- whether another treatment is planned.
Later effects
Some effects can persist or develop months or years later. They depend strongly on the part of the body treated and the dose received. Modern planning aims to limit radiation to nearby normal tissues, but it cannot remove every risk.
Your consent discussion should have covered the later effects relevant to your treatment. Report a persistent or new symptom rather than assuming it must be caused by radiotherapy. It may need assessment for another cause.
Contact the team rather than waiting if you are worried
You do not need to wait for a routine appointment if symptoms are severe, changing or difficult to manage. Follow the urgent advice given by your own department.
Seek prompt medical advice for symptoms such as significant breathing difficulty, uncontrolled pain, inability to swallow fluids, dehydration, heavy bleeding, fever or sudden neurological change. The relevant warning signs vary with the treatment area.
Recovery is not identical for everyone
Some people return to usual activities quickly. Others need more time because of treatment effects, the cancer itself or other treatment given before or after radiotherapy. A slower recovery does not by itself show whether radiotherapy has worked.
Knowing the expected timetable, who will follow you up and how to get advice is more useful than comparing your recovery with somebody who had radiotherapy to a different part of the body.
