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Side effects and late effects of cancer treatment
Source: Childhood Esophageal Cancer, National Cancer Institute.
Source updated: February 12, 2025 · Captured 2026-09-09.
Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary. Independent clinical review is pending.
Side effects and late effects of cancer treatment
Cancer treatments can cause side effects. Which side effects your child might have depends on the type of treatment they receive, the dose, and how their body reacts. Talk with your child's treatment team about which side effects to look for and ways to manage them.
Learn more about Side Effects of Cancer Treatment.
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Problems from cancer treatment that begin 6 months or later after treatment and continue for months or years are called late effects. Late effects of cancer treatment may include:
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physical problems, such as narrowing of the esophagus
changes in mood, feelings, thinking, learning, or memory
second cancers (new types of cancer) or other problems
Some late effects may be treated or controlled. It is important to talk with your child's doctors about the possible late effects caused by some treatments. Learn more about Late Effects of Treatment for Childhood Cancer.
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Preserved source evidence · Independent clinical review pending · Not medical advice