Treated as a child, now an adult

Childhood cancer survival has improved enormously, which means a large population of adults carrying the consequences of treatment given decades ago — often with no record of what it was. The point of long-term follow-up is not anxiety; it is that a handful of specific checks, matched to what you actually received, catch things early and are otherwise missed entirely.

You cannot know what to watch for without knowing what you had. Parents remember diagnoses; almost nobody remembers cumulative anthracycline dose or which fields were irradiated.

1. Contact the hospital that treated you and ask for a treatment summary or your medical records. Records retention for childhood cancer is usually long, and paediatric oncology services are used to this request.
2. Ask specifically for: diagnosis and age at treatment, chemotherapy drugs with cumulative doses, radiotherapy sites and total doses, surgery, whether you had a stem cell transplant, and any complications.
3. Ask whether a late-effects or long-term follow-up clinic exists for adults, and how to be referred.
4. Give a copy to your family doctor and keep one yourself — see survivorship care plans.
5. If parents or guardians hold letters from the time, those are often more complete than anything else available.

Guidelines from international groups match surveillance to treatment received. The recurring themes:

• Heart — anthracyclines and chest radiotherapy. Echocardiograms at intervals, and cardiovascular risk factors taken seriously early. See heart and bone health.
• Second cancers — chest radiotherapy in particular changes breast screening recommendations, often starting far earlier than the general population and sometimes with MRI. Ask whether this applies to you.
• Thyroid and other endocrine — neck or brain radiotherapy affects thyroid, growth and pituitary function. Annual blood tests are common.
• Fertility and hormones — assessment rather than assumption, for everyone. See fertility after treatment.
• Hearing — platinum chemotherapy, particularly in young children.
• Kidneys, lungs and bones — depending on drugs and fields.
• Learning and memory — cranial radiotherapy and some treatments given very young affect processing speed and working memory. Assessment can unlock support at work and in education.
• Teeth and jaw — treatment during tooth development has long consequences; regular dental care matters.
• Mental health — including the specific experience of remembering little about something that shaped your whole family.

Very common, and completely fixable. Most people drop out at the transition to adult services, or when they move away for university or work.

• Start with your family doctor: tell them you were treated for cancer as a child and ask for referral to a late-effects or long-term follow-up service.
• If you have no records, say so — the service can often obtain them, and it is a routine part of what they do.
• Ask what the recommended surveillance is for your treatment, and who arranges each part.
• Ask for it in writing, so that moving house or changing doctor does not restart the whole process.