TriangleFOR PATIENTS · SOURCE READING
Side effects of treatment
Source: Childhood Stomach Cancer, National Cancer Institute.
Source updated: November 5, 2024 · 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 of 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.
To learn more about side effects that begin during treatment for cancer, visit Side Effects.
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Side effects from cancer treatment that begin after treatment and continue for months or years are called late effects. Late effects of cancer treatment may include:
physical problems
changes in mood, feelings, thinking, learning, or memory
second cancers (new types of cancer) or other conditions
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